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Alkali Feldspar

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About Alkali FeldsparHide

Member of:
A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. It is mostly used in petrology for the high temperature series from sanidine to high albite; the series is incomplete at low temperature, but normal albite, orthoclase and microcline are generally still included as alkali feldspars.
Some workers (eg the Strunz classification) include barium feldspars (celsian and hyalophane), the ammonium feldspar buddingtonite and the rubidium feldspar rubicline, as alkali feldspars.



Age distributionHide

Recorded ages:
Phanerozoic : 180 Ma to 0.380 ± 0.007 Ma - based on 11 recorded ages.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019652AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Grande Calderira, Azores0293
0019653AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Grande Calderira, Azores0673
0019654AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Mt Gibele, Pantelleria Islands, Italy0293
0019655AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Mt Gibele, Pantelleria Islands, Italy0783
0019656AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Kakanui, New Zealand0293
0019657AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Kakanui, New Zealand01023
0019660AlbiteFitzGerald J D, Parise J B, Mackinnon I D R (1986) Average structure of an An48 plagioclase from the Hogarth Ranges American Mineralogist 71 1399-14081986Hogarth Ranges, northern New South Wales, Australia0293
0019661AlbiteFitzGerald J D, Parise J B, Mackinnon I D R (1986) Average structure of an An48 plagioclase from the Hogarth Ranges American Mineralogist 71 1399-14081986Hogarth Ranges, northern New South Wales, Australia0293
0000536AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0297
0000537AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0623
0000538AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0873
0000539AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01023
0000540AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01223
0000541AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01363
0000542AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01378
0000595AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-93119770773
0000596AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-931197701023
0000597AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-931197701243
0000694AlbiteKeefer K D, Brown G E (1978) Crystal structures and compositions of sanidine and high albite in cryptoperthitic intergrowth Note this sample of feldspar is from the Rabb Canyon pegmatite, Grant County, New Mexico, USA American Mineralogist 63 1264-127319780293
0000715AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA0298
0000716AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA0773
0000717AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01023
0000718AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01253
0000719AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01313
0000720AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01253
0000721AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01333
0000797AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000798AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000799AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000800AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0001015AlbiteSmith J V, Artioli G (1986) Low albite, NaAlSi3O8: Neutron diffraction study of crystal structure at 13 K American Mineralogist 71 727-7331986Amelia, Virginia, USA013
0001285AlbiteArmbruster T, Burgi H B, Kunz M, Gnos E, Bronnimann S, Lienert C (1990) Variation of displacement parameters in structure refinements of low albite American Mineralogist 75 135-1401990Roc Tourne, France0293
0001682AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940293
0001683AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940293
0001684AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940.44293
0001685AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219941.22293
0001686AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219942.68293
0001687AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219943.78293
0002264AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002265AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002266AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002267AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002268AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002269AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002270AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002271AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0003798AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020056.489293
0003799AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020058.411293
0003800AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020059.431293
0006422AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0006423AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0006424AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0019658AlbitePhillips M W, Colville A A, Ribbe P H (1971) The crystal structures of two oligoclases: a comparison with low and high albite Zeitschrift fur Kristallographie 133 43-651971Camedo, Switzerland0293
0019659AlbitePhillips M W, Colville A A, Ribbe P H (1971) The crystal structures of two oligoclases: a comparison with low and high albite Zeitschrift fur Kristallographie 133 43-651971Camedo, Switzerland0293
0012863AlbiteGualtieri A F (2000) Accuracy of XRPD QPA using the combined Rietveld-RIR method Journal of Applied Crystallography 33 267-2782000Baveno, Novara, Italy0293
0000519CelsianGriffen D T, Ribbe P H (1976) Refinement of the crystal structure of celsian American Mineralogist 61 414-41819760293
0000887HyalophaneViswanathan K, Kielhorn H M (1983) Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal structure refinement Celsian-rich American Mineralogist 68 122-1241983Yugoslavia0293
0009608HyalophaneDe Pieri R, Quareni S, Hall K M (1977) Refinement of the structures of low and high hyalophanes Acta Crystallographica B33 3073-307619770293
0009609HyalophaneDe Pieri R, Quareni S, Hall K M (1977) Refinement of the structures of low and high hyalophanes Acta Crystallographica B33 3073-307619770293
0000194MicroclineBailey S W (1969) Refinement of an intermediate microcline structure American Mineralogist 54 1540-154519690293
0000714MicroclineRibbe P H (1979) The structure of a strained intermediate microcline in cryptoperthitic association with twinned plagioclase feldspar American Mineralogist 64 402-4081979Kongnat syenite, SW Greenland0293
0000962MicroclineGriffen D T, Johnson B T (1984) Strain in triclinic alkali feldspars: a crystal structure study intermediate American Mineralogist 69 1072-107719840293
0005216MicroclineBlasi A, De Pol Blasi C, Zanazzi P F (1987) A re-examination of the Pellotsalo microcline: Mineralogical implications and genetic considerations The Canadian Mineralogist 25 527-53719870293
0006649MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519970293
0006650MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519971.4293
0006651MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519972.9293
0006652MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519974.4293
0006653MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519976.2293
0006654MicroclineAllan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-27519977.1293
0020534MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020535MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020536MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020537MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020538MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020539MicroclineDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0019651OrthoclaseViswanathan K, Kielhorn H M (1983) Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal structure refinement American Mineralogist 68 122-1241983Yugoslavia0293
0000166OrthoclaseColville A A, Ribbe P H (1968) The crystal structure of an adularia and a refinement of the structure of orthoclase American Mineralogist 53 25-371968St. Gotthard, Switzerland, known as Spencer B, variety adularia0293
0000167OrthoclaseColville A A, Ribbe P H (1968) The crystal structure of an adularia and a refinement of the structure of orthoclase American Mineralogist 53 25-371968St. Gotthard, Switzerland, known as Spencer C0293
0000313OrthoclasePhillips M W, Ribbe P H (1973) The structures of monoclinic potassium-rich feldspars American Mineralogist 58 263-2701973St. Gotthard, Switzerland0293
0000320OrthoclasePrince E, Donnay G, Martin R F (1973) Neutron diffraction refinement of an ordered orthoclase structure American Mineralogist 58 500-5071973Himalaya mine, California, USA0293
0020509OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0293
0020540OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0293
0020541OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0293
0020542OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0293
0020543OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0600
0020544OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0900
0020545OrthoclaseAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown01075
0007928OrthoclaseTseng H-Y, Heaney P J, Onstott T C (1995) Characterization of lattice strain induced by neutron irradiation Physics and Chemistry of Minerals 22 399-40519950293
0007929OrthoclaseTseng H-Y, Heaney P J, Onstott T C (1995) Characterization of lattice strain induced by neutron irradiation Physics and Chemistry of Minerals 22 399-40519950293
0007930OrthoclaseTseng H-Y, Heaney P J, Onstott T C (1995) Characterization of lattice strain induced by neutron irradiation Physics and Chemistry of Minerals 22 399-40519950293
0020547OrthoclaseJones J B, Taylor W H (1961) The structure of orthoclase Acta Crystallographica 14 443-4561961Mogok, Upper Burma0293
0020550OrthoclaseDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020551OrthoclaseDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020552OrthoclaseDal Negro A, De Pieri R, Quareni S (1978) The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Acta Crystallographica B34 2699-27071978Adamello Massif, Northern Italy0293
0020553OrthoclaseFenn P M, Brown G E (1977) Crystal structure of a synthetic, compositionally intermediate, hypersolvus alkali feldspar: evidence for Na, K site ordering Zeitschrift fur Kristallographie 145 124-1451977Synthetic0293
0020546OrthoclaseGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar0293
0018075OrthoclaseChao S, Hargreaves A, Taylor W (1940) The structure of orthoclase. _cod_database_code 1011205 Mineralogical Magazine 25 498-51219400293
0020548OrthoclaseKimata M, Saito S, Shimizu M, Iida I, Matsui T (1996) Low-temperature structures of orthoclase and sanidine Neues Jahrbuch fur Mineralogie, Abhandlungen 171 199-2131996Itrongay, Madagascar0121
0020549OrthoclaseKimata M, Saito S, Shimizu M, Iida I, Matsui T (1996) Low-temperature structures of orthoclase and sanidine Neues Jahrbuch fur Mineralogie, Abhandlungen 171 199-2131996Itrongay, Madagascar0293
0000781SanidineViswanathan K, Brandt K (1980) The crystal structure of ternary (Ba,K,Na)-feldspar and its significance American Mineralogist 65 472-4761980Otjosondu, Namibia0293
0020567SanidineDeubener J, Sternitzke M, Mueller G (1991) Feldspars MAlSi3O8 (M=H,Li,Ag) synthesized by low-temperature ion exchange American Mineralogist 76 1620-16271991Volkesfeld, Eifel, Germany0293
0000312SanidinePhillips M W, Ribbe P H (1973) The structures of monoclinic potassium-rich feldspars American Mineralogist 58 263-2701973Laacher See, Eifel District, Germany0293
0000695SanidineKeefer K D, Brown G E (1978) Crystal structure and composition of sanidine and high albite in cryptoperthitic intergrowth Note this sample of feldspar is from the Rabb Canyon pegmatite, Grant County, New Mexico, USA American Mineralogist 63 1264-127319780293
0001125SanidineScambos T A, Smyth J R, McCormick T C (1987) Crystal-structure refinement of high sanidine from the upper mantle American Mineralogist 72 973-97819870293
0005270SanidineFerguson R B, Ball N A, Cerny P (1991) Structure refinement of an adularian end-member high sanidine from the Buck Claim Pegmatite, Bernic Lake, Manitoba The Canadian Mineralogist 29 543-5521991Buck Claim Pegmatite, Bernic Lake, Manitoba, Canada0293
0005271SanidineFerguson R B, Ball N A, Cerny P (1991) Structure refinement of an adularian end-member high sanidine from the Buck Claim Pegmatite, Bernic Lake, Manitoba The Canadian Mineralogist 29 543-5521991Buck Claim Pegmatite, Bernic Lake, Manitoba, Canada0293
0005272SanidineFerguson R B, Ball N A, Cerny P (1991) Structure refinement of an adularian end-member high sanidine from the Buck Claim Pegmatite, Bernic Lake, Manitoba The Canadian Mineralogist 29 543-5521991Buck Claim Pegmatite, Bernic Lake, Manitoba, Canada0293
0005273SanidineFerguson R B, Ball N A, Cerny P (1991) Structure refinement of an adularian end-member high sanidine from the Buck Claim Pegmatite, Bernic Lake, Manitoba The Canadian Mineralogist 29 543-5521991Buck Claim Pegmatite, Bernic Lake, Manitoba, Canada0293
0006421SanidineKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0006587SanidineKimata M, Saito S, Shimizu M (1995) Structure of sanidine-type KGaSi3O8: Tetrahedral-site disordering in potassium feldspar European Journal of Mineralogy 7 287-29319950293
0006610SanidineKimata M, Shimizu M, Saito S (1996) High-temperature crystal structure of sanidine Part II. The crystal structure of sanidine at 935 C European Journal of Mineralogy 8 15-2419960293
0006611SanidineKimata M, Shimizu M, Saito S (1996) High-temperature crystal structure of sanidine Part II. The crystal structure of sanidine at 935 C European Journal of Mineralogy 8 15-2419960293
0007255SanidineMenna M, Tribaudino M, Renzulli A (2008) Al-Si order and spinodal decomposition texture of sanidine from igneous clasts of Stromboli (southern Italy): insights into the timing between the emplacement of a shallow basic sheet intrusion and the eruption of related ejecta European Journal of Mineralogy 20 183-1902008Stromboli volcano, southern Italy0293
0020508SanidineAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Unknown0293
0020554SanidineAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Synthetic0293
0020555SanidineAngel R J, Ross N L, Zhao J, Sochalski-Kolbus L, Kruger H, Schmidt B C (2013) Structural controls on the anisotropy of tetrahedral frameworks: the example of monoclinic feldspars European Journal of Mineralogy 25 597-6142013Synthetic0293
0020563SanidineRibbe P H (1963) A refinement of the crystal structure of sanidinised orthoclase Acta Crystallographica 16 426-4271963Unknown0293
0018087SanidineTaylor W (1933) The structure of sanidine and other feldspars 2.56 _cod_database_code 1011224 Zeitschrift fur Kristallographie 85 425-44219330293
0018062SanidineTaylor W (1934) The structure of sanidine and other felspars _cod_database_code 1011187 Zeitschrift fur Kristallographie 87 464-48119340293
0010740SanidineWeitz G (1972) Die struktur des saninins bei verschiedenen ordnungsgraden Zeitschrift fur Kristallographie 136 418-4261972Volkesfeld, Eifel0293
0010741SanidineWeitz G (1972) Die struktur des saninins bei verschiedenen ordnungsgraden Zeitschrift fur Kristallographie 136 418-4261972Volkesfeld, Eifel0293
0020564SanidineOhashi Y, Finger LW (1974) Refinement of the crystal structure of sanidine at 25 and 400C Carnegie Institution of Washington: Yearbook 73 539-5441974Laacher See, Eifel District, Germany0298
0020565SanidineOhashi Y, Finger LW (1974) Refinement of the crystal structure of sanidine at 25 and 400C Carnegie Institution of Washington: Yearbook 73 539-5441974Laacher See, Eifel District, Germany0673
0020566SanidineOhashi Y, Finger LW (1975) An effect of temperature on the feldspar structure: crystal structure of sanidine at 800C Carnegie Institution of Washington: Yearbook 74 569-5721975Laacher See, Eifel District, Germany01073
0020570SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar0293
0020571SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar0293
0020572SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar0293
0020573SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar0923
0020574SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01023
0020575SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01123
0020576SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01123
0020577SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01323
0020578SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01223
0020579SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01223
0020580SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01323
0020581SanidineGering E (1985) Silizium/Aluminium-Ordnung und Kristallperfektion von Sanidinen Dissertation Kernforshungszentrum Karlsruhe 1 1-971985Madagascar01323
0012862SanidineGualtieri A F (2000) Accuracy of XRPD QPA using the combined Rietveld-RIR method Journal of Applied Crystallography 33 267-2782000Latera, Viterbo, Italy0293
0020560SanidineKimata M, Saito S, Shimizu M, Iida I, Matsui T (1996) Low-temperature structures of orthoclase and sanidine Neues Jahrbuch fur Mineralogie, Abhandlungen 171 199-2131996Volkesfeld, Eifel, Germany0121
0020561SanidineKimata M, Saito S, Shimizu M, Iida I, Matsui T (1996) Low-temperature structures of orthoclase and sanidine Neues Jahrbuch fur Mineralogie, Abhandlungen 171 199-2131996Volkesfeld, Eifel, Germany0293
0020562SanidineOnorato E, Penta M, Sgarlata F (1963) Struttura del Sanidino Periodico di Mineralogia 32 1-341963Alban Hills, Rome Province, Latium, Italy0293
0020557SanidineAckermann S, Kunz M, Armbruster T, Schefer J, Hanni H (2004) Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar: A combined neutron- and X-ray single-crystal diffraction study Schweizerische Mineralogische und Petrographische Mitteilungen 84 345-3542004Itrongay, Madagascar0293
0020558SanidineAckermann S, Kunz M, Armbruster T, Schefer J, Hanni H (2004) Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar: A combined neutron- and X-ray single-crystal diffraction study Schweizerische Mineralogische und Petrographische Mitteilungen 84 345-3542004Itrongay, Madagascar0293
0020559SanidineAckermann S, Kunz M, Armbruster T, Schefer J, Hanni H (2004) Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar: A combined neutron- and X-ray single-crystal diffraction study Schweizerische Mineralogische und Petrographische Mitteilungen 84 345-3542004Itrongay, Madagascar0293
0020556SanidineBrown G E, Hamilton W C, Prewitt C T, Sueno S (1974) Neutron diffraction study of Al/Si ordering in sanidine: a comparison with X-ray diffraction data The Feldspars: Proceedings of a NATO Advanced Study Institute 68-801974Laacher See, Eifel District, Germany0293
0020568SanidineMarcille I M, Organova N I, Rozhdestvenskaya I V (1993) Verification of the crystalline structure for sanidines Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 2 85-891993Khibiny Massif, Kola Peninsula, Russia0293
0020569SanidineMarsii I M, Organova N I, Rozhdestvenskaya I V (1993) Verification of the crystalline structure for sanidines Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 2 85-891993Mongolia0293
0009393RubiclineGasperin M (1971) Structure cristalline de RbAlSi3O8 _cod_database_code 1001771 Acta Crystallographica B27 854-85519710293
0014559RubiclineKyono A, Kimata M (2001) Refinement of the crystal structure of a synthetic non-stoichiometric Rb-feldspar Mineralogical Magazine 65 523-5312001synthetic0293
CIF Raw Data - click here to close

Other Language Names for Alkali FeldsparHide

Relationship of Alkali Feldspar to other SpeciesHide

Member of:
Other Members of this group:
AmazoniteK(AlSi3O8)
Andesine(Na,Ca)[Al(Si,Al)Si2O8]Tric.
AnorthiteCa(Al2Si2O8)Tric. 1 : P1
BanalsiteNa2BaAl4Si4O16Orth. mm2 : Iba2
Buddingtonite(NH4)(AlSi3O8)Mon. 2 : P21
Bytownite(Ca,Na)[Al(Al,Si)Si2O8]Tric.
DmisteinbergiteCa(Al2Si2O8)Trig. 3 2 : P3 1 2
FerrisanidineK[Fe3+Si3O8]Mon. 2/m : B2/m
FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m
HexacelsianBaAl2Si2O8Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
ParacelsianBa(Al2Si2O8)Mon.
ReedmergneriteNaBSi3O8Tric.
SlawsoniteSr(Al2Si2O8)Mon. 2/m : P21/b
StronalsiteNa2SrAl4Si4O16Orth.
SunstoneA variety of feldspar (microcline or oligoclase, more rarely labradorite) that has schiller, ...
SvyatoslaviteCa(Al2Si2O8)Orth.
Unnamed (New Ordered Member of the Alkali Feldspar Series)KNa(Si6Al2)O16Mon. m
Group Members:
Albite Na(AlSi3O8)Tric. 1
Anorthoclase (Na,K)AlSi3O8Tric.
Celsian Ba(Al2Si2O8)Mon. 2/m
Hyalophane (K,Ba)[Al(Si,Al)Si2O8]Mon.
Microcline K(AlSi3O8)Tric. 1
Orthoclase K(AlSi3O8)Mon. 2/m : B2/m
Rubicline Rb(AlSi3O8)Tric.
Sanidine K(AlSi3O8)Mon. 2/m : B2/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Alkali Feldspar in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

References for Alkali FeldsparHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Smith, J.V., MacKenzie, W.S. (1958) Alkali feldspars. IV. The cooling history of high-temperature sodium-rich feldspars. American Mineralogist: 43: 872-889.
Yund, R.A. (1974) Coherent exsolution in the alkali feldspars. In A.W. Hofmann, B.J. Giletti, H.S. Yoder, Jr., R.A. Yund, Eds., Geochemical Transport and Kinetics. Carnegie Institution of Washington publication 634: 173-183.
Yund, R.A., Tullis, J. (1983) Subsolidus phase relations in the alkali feldspars with emphasis on coherent phases. In P.H. Ribbe, Ed., Feldspar Mineralogy, 2: 141-176. Reviews in Mineralogy, Mineralogical Society of America, Chantilly, Virginia.
Yund, R.A. (1984) Alkali feldspar exsolution: kinetics and dependence on alkali interdiffusion. In: Feldspars and Feldspathoids: Structure, Properties and Occurrences (W.L. Brown, ed.) NATO Adv. Study Inst. Ser. C 137. Reidel Publishing Co., Dordrecht, The Netherlands (281-315).
Fleet, M.E. (1986) Lattice theory and transformation twinning in alkali feldspar. Canadian Mineralogist: 24: 615-623.
Su, Shu-Chun, Ribbe, P.H., Bloss, F.D. (1986) Alkali feldspars: structural state determined from composition and optic axial angle 2V. American Mineralogist: 71: 1285-1296.
Hovis, G.L. (1988) Enthalpies and volumes related to K-Na mixing and Al-Si order/disorder in alkali feldspars. Journal of Petrology: 29: 731-763.
Parsons, I., Rex, D.C., Guise, P., Halliday, A.N. (1988) Argon-loss by alkali feldspars. Geochimica et Cosmochimica Acta: 52: 1097-1112.
Worden, R.H., Walker, F.D.L., Parsons, I., Brown, W.L. (1990) Development of microporosity, diffusion channels and deuteric coarsening in perthitic alkali feldspars. Contributions to Mineralogy and petrology: 104: 507-515.
Evangelakakis, C., Kroll, H., Voll, G., Wenk, H.-R., Meisheng, H., Kopcke, J. (1993) Low-temperature coherent exsolution in alkali feldspars fro high-grade metamorphic rocks of Sri Lanka. Contributions to Mineralogy and Petrology: 114: 519-532.
Waldron, K.A., Lee, M.R., Parsons, I. (1994) The microstructure of perthitic alkali feldspars revealed by hydrofluoric acid etching. Contributions to Mineralogy and petrology: 116: 360-364.
Lee, M.R., Parsons, I. (1995) Microtextural controls of weathering of perthitic alkali feldspars. Geochimica et Cosmochimica Acta: 59: 4465-4488.
Walker, F.D.L., Lee, M.R., Parsons, I. (1995) Micropores and micropermeable texture in alkali feldspars: geochemical and geophysical implications. Mineralogical Magazine: 59: 505-534.
Kontak, D.J., Martin, R.F., Richard, L. (1996) Patterns in phosphorus enrichment in alkali feldspar, South Mountain batholith, Nova Scotia, Canada. European Journal of Mineralogy: 8: 805-824.
Lee, M.R., Parsons, I. (1997) Compositional and microtextural zoning in alkali feldspars from the Shap granite and its geochemical implications. Journal of the Geological Society of London: 154: 183-188.
Lee, M.R., Parsons, I. (1997) Dislocation formation and albitization in alkali feldspars from the Shap granite. American Mineralogist: 82: 557-570.
Lee, M.R., Hodson, M.E., Parsons, I. (1998) The role of intragranular microtextures and microstructures in chemical and mechanical weathering: direct comparison of experimentally and naturally weathered alkali feldspars. Geochimica et Cosmochimica Acta: 62: 2771-2788.
Parsons, I., Brown, W.L., Smith, J.V. (1999) 40Ar/39Ar thermochronology using alkali feldspars: real thermal history or mathematical mirage of microtexture Contributions to Mineralogy and Petrology: 136: 92-110.
Visocekas, R., Zink, A. (1999) Use of the far infrared TL emission band of alkali feldspars for dosimetry and dating. Quaternary Sci. Rev.: 18: 271-278.
Breiter, K., Frýda, J., Leichmann, J. (2002) Phosphorus and rubidium in alkali feldspars: case studies and possible genetic interpretation. Bulletin of the Czech Geological Survey, 77(2): 93–104.
Parsons, I., Thompson, P., Lee, M.R., Cayzer, N. (2005) Alkali feldspar microtextures as provenance indicators in siliciclastic rocks and their role in feldspar dissolution during transport and diagenesis. Journal of Sedimentary Research: 75: 921-942.
Fitz Gerald, J.D., Parsons, I., Cayzer, N. (2006) Nanotunnels and pull-aparts: defects of exsolution lamellae in alkali feldspars. American Mineralogist: 91: 772-783.

Internet Links for Alkali FeldsparHide

Significant localities for Alkali FeldsparHide

Showing 75 significant localities out of 23,736 recorded on mindat.org.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Afghanistan
 
  • Badakhshan
    • Kuran wa Munjan District
      • Koksha Valley (Kokscha Valley; Kokcha Valley)
        • Sar-e Sang (Sar Sang; Sary Sang)
          • Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine; Lapis-lazuli deposit)
[Orthoclase] RWMW Collection
Antarctica
 
  • Eastern Antarctica
    • Victoria Land
      • Ross Archipelago
        • Ross Island
[Albite var: Anorthoclase] http://tea.rice.edu/jroberts/12.13.1999.html; Dov Bahat (1979) Anorthoclase Megacrysts: Physical Conditions of Formation. Mineralogical Magazine 43:287-291; Kammerer, M. M. (2011). Nature and origin of salt deposits around the crater of Erebus volcano, Antarctica (Master dissertation, New Mexico Institute of Mining and Technology).
Austria
 
  • Carinthia
    • Wolfsberg District
      • Wolfsberg
        • Bad Weißenbach
[Orthoclase] G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
  • Lower Austria
    • Zwettl District
      • Waldhausen
[Microcline] R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
Canada
 
  • British Columbia
    • Osoyoos Mining Division
      • Penticton
[Sanidine] Dave Joyce personal collection
  • Québec
    • Abitibi-Témiscamingue
      • La Vallée-de-l'Or RCM
        • Réservoir-Dozois
[Albite var: Oligoclase] Age of the Cabonga nepheline syenite, Grenville Province, western Quebec Hudon, Pierre; Friedman, Richard M.; Gauthier, Gilles; Martignole, Jacques Canadian Journal of Earth Sciences, vol. 43, issue 9, pp. 1237-1249
Colombia
 
  • Caldas Department
    • Salamina Municipality
[Albite var: Andesine] Tassinari, C.C.G., Pinzon, F.D., and Buena Ventura, J. (2008): Ore Geology Reviews 33, 505-518.
Ethiopia
 
  • Southern Nations Nationalities and Peoples' Region
[Microcline var: Amazonite] Kaiser, H. (2006): Amazonit aus Äthiopien-Kristalle injutesäcken. ExtraLapis 30: 72-73
France
 
  • Auvergne-Rhône-Alpes
    • Loire
      • Montbrison
        • Essertines-en-Châtelneuf
[Microcline] F. Gonnard (1906) - Minéralogie des départements du Rhône et de la Loire, pp: 6 & 36
    • Rhône
      • Villefranche-sur-Saône
        • Les Ardillats
[Orthoclase] Favreau G., Legris J-R., Dardillac M. (1996), La Verrière (Rhône): Histoire et Minéralogie, Le Cahier des Micromonteurs, n°3, pp:3-28
  • Brittany
    • Côtes-d'Armor
      • Dinan
        • Saint-Jacut-de-la-Mer
[Microcline] Pierrot, R., Chauris, L., and Laforêt, C. (1975) Inventaire minéralogique de la France. Ed. BRGM, n°5, Côtes du Nord, 150-153.
  • Provence-Alpes-Côte d'Azur
    • Alpes-de-Haute-Provence
      • Barcelonnette
        • Saint-Paul-sur-Ubaye
[Albite] Piccoli, G.C. (2002) I minerali delle Alpi Marittime e Cozie. Provincia di Cuneo. Associazione Amici del Museo "F. Eusebio" di Alba, L'Artistica Savigliano, Savigliano (Cuneo), 362 pp.; Piccoli, G.C., Maletto, G., Bosio, P., and Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, L'Artigiana Srl - Azienda Grafica, Alba (Cuneo), 607 pages.
Germany
 
  • Lower Saxony
    • Goslar District
      • Braunlage
        • St Andreasberg
[Albite var: Zygadite] August Breithaupt (1843) Poggendorff Ann. v 69, p. 441
  • North Rhine-Westphalia
    • Cologne
      • Rhein-Sieg-Kreis
        • Königswinter
[Sanidine] Nose, K.W. (1808) in Nöggerath, J., Mineralogische Studien über die Gebirge am Niederrhein..., Frankfurt.; Krul, H. (1969) Geologische zwerftochten. N.V. W.J. Thieme & Cie - Zutphen, Netherlands, 161 pp. (in Dutch).
Italy
 
  • Sicily
    • Trapani Province
[Albite var: Anorthoclase] [Foerstner] Förstner H. (1877): Ueber die Natronorthoklas von Pantelleria. Zeits. Kryst. Min., 1, 1, 547-561; Foerstner E. [H.] (1881): Nota preliminare sulla geologia dell'isola di Pantelleria secondo gli studi fatti negli anni 1874 e 1881. Boll. R. Comit. Geol. Ital., 12, 523-556;[Foerstner] Förstner H. (1884): Ueber die Feldspäthe von Pantelleria. Zeits. Kryst. Min., 8, 1, 125-202; Foerstner H. (1884): Ueber künstliche physikalische Veränderungen der Feldspäthe von Pantelleria. Zeits. Kryst. Min., 9, 1, 333-352; Rosenbusch H. (1885): Mikroschopische Physiographie der Mineralien und Gesteine. Ein Hülfsbuch bei mikroskopischen Gesteinsstudien. Band I. Die petrographisch wichtigen Mineralien. Zweite gänzlich umgearbeitete Auflage. E. Schweizerbart’sche Verlagshandlung (E. Koch), Stuttgart, 664 pp.; Bahat D. (1979): Anorthoclase megacrysts: physical conditions of formation. Mineralogical Magazine, 43, 287-291; Civetta L., D’Antonio M., Orsi G., Tilton G.R. (1998): The geochemistry of volcanic rocks from Pantelleria Island, Sicily Channel: petrogenesis and characteristics of the mantle source region. Journ. Petrology, 1453-1491.; Avanzinelli, R., Braschi, E., Marchionni, S., & Bindi, L. (2014). Mantle melting in within-plate continental settings: Sr–Nd–Pb and U-series isotope constraints in alkali basalts from the Sicily Channel (Pantelleria and Linosa Islands, Southern Italy). Lithos, 188, 113-129. Civetta, L., Cornette, Y., Crisci, G., Gillot, P. Y., Orsi, G., & Requejo, C. S. (1984). Geology, geochronology and chemical evolution of the island of Pantelleria. Geological Magazine, 121(6), 541-562. Civetta, L., Cornette, Y., Gillot, P. Y., & Orsi, G. (1988). The eruptive history of Pantelleria (Sicily Channel) in the last 50 ka. Bulletin of Volcanology, 50(1), 47-57. Di Carlo, I., Rotolo, S. G., Scaillet, B., Buccheri, V., & Pichavant, M. (2010). Phase equilibrium constraints on pre-eruptive conditions of recent felsic explosive volcanism at Pantelleria Island, Italy. Journal of Petrology, 51(11), 2245-2276. Lanzo, G., Landi, P., & Rotolo, S. G. (2013). Volatiles in pantellerite magmas: a case study of the Green Tuff Plinian eruption (Island of Pantelleria, Italy). Journal of volcanology and geothermal research, 262, 153-163. Lowenstern, J. B. (1994). Chlorine, fluid immiscibility, and degassing in peralkaline magmas from Pantelleria, Italy. American Mineralogist, 79(3-4), 353-369. Neave, D. A., Fabbro, G., Herd, R. A., Petrone, C. M., & Edmonds, M. (2012). Melting, differentiation and degassing at the Pantelleria volcano, Italy. Journal of Petrology, 53(3), 637-663. Peccerillo, A. (2005). Plio-quaternary volcanism in Italy (Vol. 365). New York: Springer-Verlag Berlin Heidelberg. Rotolo, S. G., Scaillet, S., La Felice, S., & Vita-Scaillet, G. (2013). A revision of the structure and stratigraphy of pre-Green Tuff ignimbrites at Pantelleria (Strait of Sicily). Journal of volcanology and geothermal research, 250, 61-74. White, J. C., Ren, M., & Parker, D. F. (2005). Variation in mineralogy, temperature, and oxygen fugacity in a suite of strongly peralkaline lavas and tuffs, Pantelleria, Italy. The Canadian Mineralogist, 43(4), 1331-1347. Washington, H. S. (1909). ART. VIII.--The Submarine Eruptions of 1831 and 1891 near Pantelleria. American Journal of Science (1880-1910), 27(158), 131-150. Wolff, J. A., & Wright, J. V. (1981). Formation of the Green Tuff, Pantelleria. Bulletin Volcanologique, 44(4), 681-690.
  • Tuscany
    • Livorno Province
      • Campo nell'Elba
[Rubicline] D.K.Teertstra, P. Cerny, F.C. Hawthorne, J. Pier, L.M. Wang, C. Ewing (1998) - Rubicline, a new feldspar from San Piero in Campo, Elba, Italy - Am. Min., 83: 1335–1339.
[Orthoclase] Barsotti, G., & Nannoni, R. (2006). Rocce, minerali e miniere delle isole dell'Arcipelago Toscano. Pacini editore, 152 pp.
[Orthoclase] Barsotti, G., & Nannoni, R. (2006). Rocce, minerali e miniere delle isole dell'Arcipelago Toscano. Pacini editore, 152 pp.
        • Sant'Ilario in Campo
[Orthoclase]
Madagascar
 
  • Anosy
    • Betroka
      • Mahasoa Est
[Sanidine] Ackermann, S., Kunz, M., Armruster, T., Schefer, J. & Hanni, H. (2005): Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar. A combined neutron- and x -ray single crystal diffraction study. Lawrence Berkeley National Labroatory- http://www.escholarship.org/uc/item/20f968sx http://www.mindat.org/mesg-7-219075.html
Namibia
 
  • Erongo Region
    • Dâures Constituency
      • Brandberg Area
        • Messum Igneous Complex
[Microcline] Peter Seroka collection. Bezing, L. von, Bode, R. & Jahn, S. (2008): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern: 270 (in English)
Norway
 
  • Agder
[Microcline] Breithaupt, A. (1830): Ueber die Felsite und einige neue Specien ihres Geschlechts. Journal für Chemie und Physik, 60: 316-330
    • Evje og Hornnes
      • Landsverk
[Microcline var: Amazonite] Neumann, H. (1960): Mineral occurrences in southern Norway. Guide to excursions no A.15 and no. C 12. International Geological Congress XXI session Norden 1960, 18p.; Revheim, O. (2015):Mikroklin fra Landsverk 1, Evje. Stein 42 (4), 14-16 Werner, R. (2017) Evje Mineralsti - Landsverk Quarries. Setesdalsmuseet/Aust-Agder museum and archive. 36 pp.
  • Vestfold og Telemark
    • Larvik
[Microcline] Breithaupt, A. (1830): Ueber die Felsite und einige neue Specien ihres Geschlechts. Journal für Chemie und Physik, 60: 316-330; Larsen, K. E. (2015): Mikroklin- et mineral førstegangsbeskrevet fra Norge. Stein 42 (4), 9-11.
Russia
 
  • Murmansk Oblast
    • Lovozersky District
      • Keivy Mountains
        • Western Keivy Massif
          • Serpovidnyi Ridge
[Microcline var: Amazonite] Lunts, A.Ya. [Лунц, А.Я] (1972) Mineralogy, geochemistry and origin of the rare-earth pegmatites of alkaline granites, north-western USSR [Минералогия, геохимия и генезис редкоземельных пегматитов щелочных гранитов Северо-Запада СССР]. Nedra [Недра], Moscow, 176 pp. (in Russian).
Spain
 
  • Community of Madrid
[Albite] Garcia G., Gonzalez C., Bueno A. (2004) - Cadalso de los Vidrios (Madrid), Bocamina, n° 14, pp: 12-46.
Sweden
 
  • Dalarna County
    • Falun
[Albite] Gahn, J.G. & Berzelius, J.J. (1815): Afhandl. Fys. Kem. Min., 4, 180; American Mineralogist (1990) 75, 135.
  • Stockholm County
    • Stockholm
[Albite var: Oligoclase] [Clark, 1993 - "Hey's Mineral Index"]
  • Värmland County
    • Filipstad
      • Nordmark District
        • Jakobsberg ore field
[Celsian] GFF (1895) 17, 578; Holtstam, D. & Norrestam, R. (1993): Lindqvistite Pb2MeFe16O27,a novel hexagonal ferrite mineral from Jakobsberg, Filipstad, Sweden. American Mineralogist. 78, 1304-1312
Switzerland
 
  • Valais
    • Entremont
      • Bagnes
        • Verbier
[Albite] Erik Vercammen photo & specimen (Bought at the Fiesch-show in 2003)
    • Goms
      • Binn
        • Fäld
[Microcline var: Hyalophane] Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 217-218; American Mineralogist 68, 112 (1983)
USA
 
  • California
    • San Diego County
      • Pala Mining District
        • Pala
          • Chief Mountain
            • Elizabeth R. Mine (Hazel W. claim)
[Albite] Mauthner, M. H. F. (2008), The Forty-niner Pocket, Oceanview Mine, Pala District, San Diego County, California. Rocks & Minerals 83(4): 292-297.
  • Colorado
    • Gunnison Co.
      • Willow Creek Mining District
[Albite var: Cleavelandite] The Williamson Southern Group National Collection
    • Park Co.
      • Tarryall
[Microcline var: Amazonite] Jordi Fabre
    • Teller Co.
      • Crystal Peak
[Microcline var: Amazonite] Specimen from Joe Dorris collection exhibited at Tucson show 2008; Joseph Dorris (2015) Amazomite and Smoky Quartz Mining on the Smoky Hawk Claim, Teller County, Colorado. 36th Annual New Mexico Mineral Symposium pp. 11-12.; Joseph Dorris (2016) Amazonite and Smoky Quartz Pegmatites of the Smoky Hawk Trend, Teller County, Colorado. in Second Eugene E. Foord Pegmatite Symposium July 15-19, 2016 Colorado School of Mines campus, Golden, Colorado
  • Connecticut
    • Fairfield County
      • Redding (Reading)
        • Branchville
[Albite var: Cleavelandite] Cameron et al (1954) USGS Prof Paper 255, Ronald Januzzi collection
      • Trumbull
        • Long Hill
[Albite var: Oligoclase] Harold Moritz collection
[Albite] Hobbs, W. H. (1901): The old tungsten mine in Trumbull, Conn. USGS Annual Report 22:7-22; Januzzi, Ronald E. (1976): Mineral Localities of CT and Southeastern NY State. The Mineralogical Press, Danbury, Connecticut; Sullivan, Earle C. (1985): History and Minerals of Old Mine Park. Second Edition, Revised and Expanded. Trumbull Historical Society, Inc.
    • Litchfield Co.
      • Litchfield
[Albite] Brunet, William M. (1977). Ilmenite Occurrences In Litchfield, Connecticut. Rocks & Minerals: 52(11): 415-20.
      • Morris
[Microcline] W.C. van Laer: field notes, 1977; Yale Peabody Museum collection
      • Plymouth
[Albite] Former Ed Force collection
      • Thomaston
[Microcline] Januzzi, Ronald E. and David Seaman. (1976), Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut.
    • Middlesex Co.
      • East Hampton (Chatham)
        • Airline Railroad
[Microcline] Schooner, Richard. (1958), The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.; Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
[Albite var: Cleavelandite] Cameron, Eugene N., Larrabee David M., McNair, Andrew H., Page, James T., Stewart, Glenn W., and Shainin, Vincent E. (1954), Pegmatite Investigations 1942-45 New England; Shannon, Earl V. (1920), The Old Lithia Mine in Chatham, Connecticut. American Mineralogist: 5: 82-84.
      • Haddam
[Microcline] Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.; Ryerson, Kathleen. (1972): Rock Hound's Guide to Connecticut. Pequot Press.; Webster, Bud. (1978): Mineral Collector’s Field Guide Connecticut.
        • Haddam Neck
[Albite] Mineralogical Magazine 1902 13 : 97-121.; USGS Prof Paper 255; Scovil, Jeffrey A. (1992): Famous Mineral Localities: the Gillette Quarry, Haddam Neck, Connecticut. (Mineralogical Record, 23(1):19-28.)
[Microcline] Harold Moritz collection
[Microcline var: Amazonite] Weber, Marcelle H. and Earle C. Sullivan. (1995): Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 403
[Microcline var: Hyalophane] Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
[Albite] Yedlin, Neal. (1967). The Micromounter. Rocks and Minerals: 42(11): 840-842.
[Albite var: Oligoclase] Foye, W. G. (1922): Mineral Localities in the Vicinity of Middletown, Connecticut. (American Mineralogist 7:4-12)
      • Portland
        • Collins Hill
          • Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries)
[Albite] Jenks, William F. (1935): Pegmatites at Collins Hill, Portland, Conn. American Journal of Science: s. 5, 30: 177-197.; Cameron, Eugene N., Larrabee David M., McNair, Andrew H., Page, James T., Stewart, Glenn W., and Shainin, Vincent E. (1954): Pegmatite Investigations 1942-45 New England; USGS Professional Paper 255: 333-338.; Stugard, Frederick, Jr. (1958): Pegmatites of the Middletown Area, Connecticut. USGS Bulletin 1042-Q.
    • Tolland Co.
      • Union
[Albite] Bartsch, Rudolf C. B. (1940): New England Notes. Rocks & Minerals, vol. 15, no. 8, p. 274.
  • Idaho
    • Boise Co.
[Microcline] Ted Johnson Collection
  • Maine
    • Oxford County
      • Albany
[Microcline] Barry Heath and Frank Perham; King, V. (ed.), 2009, Maine feldspar, Families, and Feuds.
  • Massachusetts
    • Bristol Co.
      • Acushnet
[Albite] Cahoon, James C. (2005) Massachusetts: A Classic Swiss Alpine Cleft Mineral Region. modified and updated by Barbara Liebman, Boston Mineral Club News, September, 2005, Cambridge, Massachusetts.
    • Essex Co.
      • Gloucester
[Microcline] P Cristofono collection , 2009
  • Montana
    • Flathead Co.
      • Hog Heaven Mining District (Flathead Mining District)
        • Kofford Ridge
[Sanidine] Ray Lasmanis
  • New Jersey
    • Sussex County
      • Franklin Mining District
        • Franklin
          • Franklin Mine
[Microcline] Peters, et al: The Minerals of the Buckwheat Dolomite, Franklin, NJ: Mineralogical Record:14:183-194; Dunn(1995):Pt4:510.
[Microcline] Palache(1935):16 & 60; Dunn(1995):Pt1:133.
  • New Mexico
    • Otero Co.
[Albite] D.Court collection
  • Pennsylvania
    • Delaware Co.
      • Middletown Township
[Microcline] Gordon, Mineralogy of Pennsylvania, 1922 p. 190
  • Rhode Island
    • Washington Co.
      • Westerly
        • Bradford
[Albite var: Oligoclase] Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston
  • Texas
    • Llano Co.
      • Kingsland Granite Company Quarry (Petrick Quarry)
[Microcline] Self-collected by Franklin Roberts.; Arthur Smith, Frank Roberts, Denise Bicknell (2008) Mineral News, 24, #1, 6-7.
 
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