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Fresnoite

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About FresnoiteHide

Formula:
Ba2Ti(Si2O7)O
Colour:
Lemon to canary yellow
Lustre:
Vitreous
Hardness:
3 - 4
Specific Gravity:
4.43
Crystal System:
Tetragonal
Name:
Named by John T. Alfors, Melvin C. Stinson, Robert A. Matthews and Adolf Pabst in 1965 for Fresno County that includes the type locality.
This page provides mineralogical data about Fresnoite.


Classification of FresnoiteHide

Approved
First Published:
1965
9.BE.15

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
55.4.2.1

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
4 : Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
14.9.11

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Pronounciation of FresnoiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of FresnoiteHide

Vitreous
Colour:
Lemon to canary yellow
Streak:
White
Hardness:
3 - 4 on Mohs scale
Cleavage:
Imperfect/Fair
(001)
Density:
4.43 g/cm3 (Measured)    
Comment:
Determined using a sample totaling 10.77 mg.

Optical Data of FresnoiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.775 nε = 1.765
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Visible
Comments:
In transmitted polarized light, from yellow to colorless. The mineral characteristically shows anomalous blueinterference colors.

Chemical Properties of FresnoiteHide

Formula:
Ba2Ti(Si2O7)O
IMA Formula:
Ba2TiO(Si2O7)
Common Impurities:
Al,Fe,Mn,Mg,Ca,Sr,K

Crystallography of FresnoiteHide

Crystal System:
Tetragonal
Class (H-M):
4mm - Ditetragonal Pyramidal
Space Group:
P4bm
Cell Parameters:
a = 8.52 Å, c = 5.21 Å
Ratio:
a:c = 1 : 0.612
Unit Cell V:
378.20 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of FresnoiteHide

Geological Setting of Type Material:
Gneissic metamorphic rocks composed mainly of sanbornite and quartz.
Associated Minerals at Type Locality:

Synonyms of FresnoiteHide

Other Language Names for FresnoiteHide

German:Fresnoit
Simplified Chinese:硅钛钡石
Spanish:Fresnoita
Traditional Chinese:矽鈦鋇石

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Fresnoite associated with AnalcimeNa(AlSi2O6) · H2O
2 photos of Fresnoite associated with QuartzSiO2
2 photos of Fresnoite associated with KampfiteBa12(Si11Al5)O31(CO3)8Cl5
2 photos of Fresnoite associated with SanborniteBa2(Si4O10)
1 photo of Fresnoite associated with TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx
1 photo of Fresnoite associated with PyrrhotiteFe7S8
1 photo of Fresnoite associated with CalciteCaCO3
1 photo of Fresnoite associated with PerovskiteCaTiO3
1 photo of Fresnoite associated with NephelineNa3K(Al4Si4O16)
1 photo of Fresnoite associated with FluorapatiteCa5(PO4)3F

Related Minerals - Nickel-Strunz GroupingHide

9.BE.02Wadsleyite(Mg,Fe2+)2(SiO4)Orth.
9.BE.05HennomartiniteSrMn3+2(Si2O7)(OH)2 · H2OOrth.
9.BE.05LawsoniteCaAl2(Si2O7)(OH)2 · H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
9.BE.05NoelbensoniteBaMn3+2(Si2O7)(OH)2 · H2OOrth.
9.BE.05ItoigawaiteSrAl2(Si2O7)(OH)2 · H2OOrth.
9.BE.07IlvaiteCaFe3+Fe2+2(Si2O7)O(OH)Orth. mmm (2/m 2/m 2/m)
9.BE.07ManganilvaiteCaFe2+Fe3+Mn2+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.10SuoluniteCa2(H2Si2O7) · H2OOrth.
9.BE.12JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
9.BE.17BaghdaditeCa3(Zr,Ti)(Si2O7)O2Mon.
9.BE.17BurpaliteNa2CaZr(Si2O7)F2Mon.
9.BE.17CuspidineCa4(Si2O7)(F,OH)2Mon. 2/m : P21/b
9.BE.17Hiortdahlite(Na,Ca)2Ca4Zr(Mn,Ti,Fe)(Si2O7)2(F,O)4Tric.
9.BE.17Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
9.BE.17Låvenite(Na,Ca)2(Mn2+,Fe2+)(Zr,Ti)(Si2O7)(O,OH,F)2Mon. 2/m : P21/b
9.BE.17Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2Mon.
9.BE.17NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OFMon. 2/m : P21/b
9.BE.17WöhleriteNaCa2(Zr,Nb)(Si2O7)(O,OH,F)2Mon. 2 : P21
9.BE.17Hiortdahlite INa4Ca8Zr2(Nb,Mn,Ti,Fe,Mg,Al)2(Si2O7)4O3F5
9.BE.17MarianoiteNa2Ca4(Nb,Zr)2(Si2O7)2(O,F)4Mon. 2 : P21
9.BE.20Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.50.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Ce)NbNa3Ca3(Ce,REE )(Si2O7)2OF3Mon.
9.BE.22GötzeniteNaCa6Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
9.BE.22KochiteNa3Ca2MnZrTi(Si2O7)2OF3Tric. 1 : P1
9.BE.23DovyreniteCa6Zr(Si2O7)2(OH)4Orth. mmm (2/m 2/m 2/m) : Pnnm
9.BE.25Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)Mon.
9.BE.25EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m
9.BE.25Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon.
9.BE.25Ericssonite-2OBaMn2+2Fe3+(Si2O7)O(OH)Orth.
9.BE.25SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon.
9.BE.25NabalamprophylliteNa3(Ba,Na)2Ti3(Si2O7)2O2(OH,F)2Mon. 2/m
9.BE.25GrenmariteNa4MnZr3(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25SchülleriteBa2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4Tric. 1 : P1
9.BE.25LileyiteBa2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25EmmerichiteBa2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25Fluorbarytolamprophyllite(Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2]Mon. 2/m : B2/m
9.BE.27MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric.
9.BE.30EpistoliteNa2(Nb,Ti)2(Si2O7)O2 · nH2OTric.
9.BE.32LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric.
9.BE.35VuonnemiteNa11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)Tric.
9.BE.37SoboleviteNa13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3Mon. m : Pb
9.BE.40InneliteNa2CaBa4Ti3(Si2O7)2(SO4)2O4Tric. 1 : P1
9.BE.40PhosphoinneliteNa3Ba4Ti3(Si2O7)2(PO4,SO4)2O2FTric.
9.BE.42YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)Tric. 1 : P1
9.BE.45QuadruphiteNa14Ca2Ti4(Si2O7)2(PO4)2O2FTric.
9.BE.47PolyphiteNa5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2Tric. 1 : P1
9.BE.50BornemaniteNa6BaTi2Nb(Si2O7)2(PO4)O2(OH)F Tric. 1 : P1
9.BE.50ShkatulkaliteNa5(Nb1−xTix)2(Ti1−yMn2+y)[Si2O7]2O2(OH)2·nH2O (x + y = 0.5; n <= 10)Mon. 2/m : P2/m
9.BE.55BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
9.BE.55HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2Tric. 1
9.BE.55Bykovaite(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2OMon. 2/m
9.BE.55Nechelyustovite(Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2OMon. 2/m : B2/m
9.BE.60Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon.
9.BE.65BusseniteNa2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3FTric. 1 : P1
9.BE.67JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FTric. 1 : P1
9.BE.67PerraultiteBaNaMn2+4Ti2(Si2O7)2O2(OH)2FMon. 2/m : B2/m
9.BE.67SurkhobiteNaCaBa2Mn8Ti4(Si2O7)4O5F5Mon. 2 : B2
9.BE.70Karnasurtite-(Ce)(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2OAmor.
9.BE.70Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon.
9.BE.70Chevkinite-(Ce)(Ce,La,Ca,Th)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Polyakovite-(Ce)(Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70RengeiteSr4ZrTi4(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70MatsubaraiteSr4Ti5(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Dingdaohengite-(Ce)(Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe2+)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Maoniupingite-(Ce)(Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70Perrierite-(La)(La,Ce,Ca)4(Fe,Mn2+,Mg)Fe3+2(Ti,Fe3+)2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70UKI-2008-(SiO:SrTiZr)Sr4ZrTi4(Si2O7)2O8Orth. mmm (2/m 2/m 2/m) : Pbca
9.BE.70Hezuolinite(Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.72FersmaniteCa4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3Tric.
9.BE.75BelkoviteBa3(Nb,Ti)6(Si2O7)2O12Hex.
9.BE.77NasonitePb6Ca4(Si2O7)3Cl2Hex.
9.BE.80KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm (2/m 2/m 2/m) : Pbcm
9.BE.80MelanotekitePb2Fe3+2(Si2O7)O2Orth. 2 2 2 : C2 2 21
9.BE.82TilleyiteCa5(Si2O7)(CO3)2Mon.
9.BE.85KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon.
9.BE.87Stavelotite-(La)(La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30Trig. 3 : P31
9.BE.90Biraite-(Ce)Ce2Fe2+(Si2O7)(CO3)Mon. 2/m : P21/b
9.BE.92Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m
9.BE.95BatisiviteBaV3+8Ti6(Si2O7)O22Tric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

55.4.2.2HardystoniteCa2Zn(Si2O7)Tet. 4 2m : P4 21m
55.4.2.3Jeffreyite(Ca,Na)2(Be,Al)(Si2O7,HSi2O7)Orth.
55.4.2.4LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
55.4.2.5Meliphanite(Ca,Na)2(Be,Al)[Si2O6(OH,F)]Tet. 4 : I4
55.4.2.6GugiaiteCa2Be(Si2O7)Tet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.9.1NatisiteNa2Ti(SiO4)OTet.
14.9.2LorenzeniteNa2Ti2(Si2O6)O3Orth. mmm (2/m 2/m 2/m) : Pbcn
14.9.3LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2OMon.
14.9.4DavaniteK2TiSi6O15Tric.
14.9.5KazakoviteNa6Mn2+Ti(Si6O18)Trig.
14.9.6TitaniteCaTi(SiO4)OMon. 2/m : P21/b
14.9.7OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2OMon.
14.9.8Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon.
14.9.9BenitoiteBaTi(Si3O9)Hex. 6 m2 : P62c
14.9.10BatisiteBaNaNaTi2(Si4O12)O2Orth.
14.9.12Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2OMon. 2 : B2
14.9.13Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2OOrth.
14.9.14StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2OMon.
14.9.15Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2OOrth.
14.9.16Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2OOrth.
14.9.17BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
14.9.18HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2Tric. 1
14.9.19Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon.
14.9.20Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)Mon.
14.9.21Trimounsite-(Y)Y2Ti2(SiO4)O5Mon.
14.9.22Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/b
14.9.23Chevkinite(Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
14.9.24Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon.
14.9.25TisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2OTrig.
14.9.26NeptuniteNa2KLiFe2+2Ti2Si8O24Mon. m : Bb
14.9.27ManganoneptuniteNa2KLiMn2+2Ti2Si8O24Mon.
14.9.28Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4FTric.
14.9.29AstrophylliteK2NaFe2+7Ti2Si8O26(OH)4FTric. 1 : P1
14.9.30Hydroastrophyllite(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31Tric.
14.9.31LobanoviteK2Na(Fe2+4Mg2Na)Ti2(Si4O12)2O2(OH)4Mon. 2/m : B2/m
14.9.32BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2Mon. 2/m : B2/b
14.9.34AenigmatiteNa4[Fe2+10Ti2]O4[Si12O36]Tric. 1 : P1
14.9.35SchorlomiteCa3(Ti,Fe3+)2((Si,Fe3+)O4)3Iso.
14.9.36TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]Tric.
14.9.37Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
14.9.38KoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2OOrth.

Fluorescence of FresnoiteHide

Pale yellow under SW UV @ 265.2 nm
No fluorescence under LW UV @ 365.0 nm

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.

References for FresnoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Alfors, J.T., Stinson, M.C., Matthews, R.A., Pabst, A. (1965) Seven new barium minerals from eastern Fresno County, California. American Mineralogist: 50: 314-340.
Masse, R., Grenier, J.C., Durif, A. (1967) Structure cristalline de la fresnoïte. Bulletin de la Société Française de Minéralogie et de Cristallographie: 90: 20-23.
Moore, P.B., Louisnathan, S.J. (1967) Fresnoite: unusual titanium coordination. Science: 156: 1361-1362.
Moore, P.B., Louisnathan, S.J. (1969) The crystal structure of fresnoite, Ba2(TiO)Si2O7. Zeitschrift für Kristallographie: 130: 438-448.
Farges, F. (1996) Coordination of Ti in crystalline and glassy fresnoites: a high resolution XANES spectroscopy study at the Ti K-edge. Journal of Non-Crystalline Solids: 204: 53-64.
Kleine, S. (1999) The Great Fresnoite Discovery of 1998. Rock & Gem: 29(3): p52.

Internet Links for FresnoiteHide

Localities for FresnoiteHide

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.
Canada
 
  • Yukon
    • Watson Lake mining district
      • Itsi Mountain
        • Wilson Lake
Robinson, G.W. (1986) Rochester Academy of Science Thirteenth Annual Mineralogical Symposium Highlights: What's New in Minerals? Panel Discussion. The Mineralogical Record: 17: 339-342 (340).; Dunning, G.E., Walstrom, R.E., Lechner, W. (2018) Barium Silicate Mineralogy of the Western Margin, North American Continent, Part Geology, Origin, Paragenesis and Mineral Distribution from Baja California Norte, Mexico, Western Canada and Alaska, USA. Baymin Journal: 19(5): 70 pgs.
DR Congo
 
  • North Kivu
    • Nyiragongo Territory
Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Germany
 
  • Rhineland-Palatinate
    • Vulkaneifel
      • Daun
        • Üdersdorf
Hentschel, G., Die Minerale der Üdersdorfer Lava, Lapis, Weise Verlag, München, 11/1989; Chukanov, N. V., Rastsvetaeva, R. K., Britvin, S. N., Virus, A. A., Belakovskiy, D. I., Pekov, I. V., ... & Ternes, B. (2011). Schüllerite, Ba 2 Na (Mn, Ca)(Fe 3+, Mg, Fe 2+) 2 Ti 2 (Si 2 O 7) 2 (O, F) 4, a new mineral species from the Eifel volcanic district, Germany. Geology of Ore Deposits, 53(8), 767-774.
      • Gerolstein
        • Roth
Blaß, G. & Schüller, W. (2012): Der Rother Kopf in der Vulkaneifel. Lapis, 37 (3), 20-29.
      • Hillesheim
Hentschel, G. (1993) Die Lavaströme der Graulai: eine neue Fundstelle in der Westeifel. Lapis, 18(9), 11-23.; Blaß, G. and Kruijen, F. (2015) Neuigkeiten aus der Vulkaneifel (II/2015). Mineralien-Welt, 26(5), 80-90.
Israel
 
  • Southern District (HaDarom District)
    • Tamar Regional Council
Galuskin, E.V., Gfeller, F., Galuskina, I.O., Pakhomova, A., Armbruster, T., Vapnik, Y., Włodyka, R., Dzierżanowski, P., Murashko, M. (2015): New minerals with a modular structure derived from hatrurite from the pyrometamorphic Hatrurim Complex. Part II. Zadovite, BaCa6[(SiO4)(PO4)](PO4)2F and aradite, BaCa6[(SiO4)(VO4)](VO4)2F, from paralavas of the Hatrurim Basin, Negev Desert, Israel. Mineralogical Magazine, 79, 1073-1087.
Mexico
 
  • Baja California
    • Ensenada Municipality
      • 62 kilometers southeast of Ensenada
        • near El Alamo
Richard Gunter Collection
Mongolia
 
  • Töv Province
    • Choir-Nyalga basin
Peretyazhko, I. S., Savina, E. A., Khromova, E. A., Karmanov, N. S., & Ivanov, A. V. (2018) Unique Clinkers and Paralavas from a New Nyalga Combustion Metamorphic Complex in Central Mongolia: Mineralogy, Geochemistry, and Genesis. Petrology, 26(2), 181-211.; Peretyazhko, I. S., Savina, E. A., Khrоmova, E. A., & Mills, S. (2017) Minerals of the rhönite-kuratite series in paralavas from a new combustion metamorphic complex in the Choir–Nyalga basin (Central Mongolia): composition, mineral assemblages and formation conditions. Mineralogical Magazine, 81(4), 949-974.
Russia
 
[World of Stones 12:49]
Tajikistan
 
  • Gorno-Badakhshan
Solovova, I. P., Girnis, A. V., Ryabchikov, I. D., & Simakin, S. G. (2006, October). High-temperature carbonatite melt and its interrelations with alkaline magmas of the Dunkel’dyk complex, southeastern Pamirs. In Doklady earth sciences (Vol. 410, No. 1, pp. 1148-1151). MAIK Nauka/Interperiodica.
USA (TL)
 
  • California
    • Fresno Co.
      • Big Creek-Rush Creek Mining District
        • Rush Creek deposit
          • Big Creek
[Amer.Min.(1965) 50, 314-340; MinRec 33:161]; American Mineralogist (1981), Volume 66, pages 1050-1053; Canadian Mineralogist (2001): 39:1053-1058.
          • Rush Creek
Robert E. Walstrom Collection
Mineralogical Record (2002) 33: 163.; Jambor, J.L. and Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.
Eckhard D. Stuart and Robert E. Walstrom
    • Humboldt Co.
      • Coastal Range
    • Mariposa Co.
      • East Belt
        • Clearing House Mining District
          • Clearing House
            • Trumbull Peak
[MinRec 30:414]; American Mineralogist (1981), Volume 66, pages 1050-1053
    • San Benito Co.
      • New Idria Mining District
        • Picacho Peak
Pabst, Adolf (1978) Zur morphologie des taramellits. Tschermaks Mineralogische und Petrographische Mitteilungen: 25: 245-256; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 465-466, 467; American Mineralogist (1984): 69: 358-373; Joseph F. Cooper Jr., Gail E. Dunning, Ted A.Hadley (2003) Minerology of the Victor Claim, Clear Creek Area, New Idria District, San Benito County, California.; Dunning, G. E., Walstrom, R. E., & Lechner, W. (2018) Barium Silicate Mineralogy of the Western Margin, North American Continent, Part Geology, Origin, Paragenesis and Mineral Distribution from Baja California Norte, Mexico, Western Canada and Alaska, USA. Baymin Journal, Vol. 19, No. 5
        • Santa Rita Peak
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 467.; William S. Wise (1982) Strontiojoaquinite and bario-orthojoaquinite: two new members of the joaquinite group . American Mineralogist 67:809-81
www.benitoitemine.com; Dunning, G. E., Walstrom, R. E., & Lechner, W. (2018) Barium Silicate Mineralogy of the Western Margin, North American Continent, Part Geology, Origin, Paragenesis and Mineral Distribution from Baja California Norte, Mexico, Western Canada and Alaska, USA. Baymin Journal, Vol. 19, No. 5
    • Tulare Co.
      • Dumtah
American Mineralogist, Volume 69, pages 358-373, 1984; Mineralogical Record: 34(2): 159-166
 
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