 | | Journal (article/letter/editorial) | | Mineralogist, Volume 75, pages 415420, 1990 Werdingite, a new borosilicate mineral from the granulite...of the westernNamaqualandmetamorphiccomplex' South Africa JonN M. Moonn, Dlvro J. Wlrnns* Department of...and Geology, University of Cape Town, Private Bag, Rondebosch7700, South Africa L. NrvnN Mlnclnnr Department...Chemistry, University of Cape Town, Private Bag, Rondebosch7700, South Africa Ansrnlcr A new borosilicate...mineral, werdingite, is reported from the granulite facies of the Namaqualand metamorphic complex at Bok |  | Grew, E. S., Rao, A. T., Raju, K. K. V. S., Hejny, C., Moore, J. M., Waters, D. J., Yates, M. G., Shearer, C. K. (2003) Prismatine and ferrohögbomite-2N2S in granulite-facies Fe-oxide lenses in the Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a tourmaline-enriched lateritic precursor?. Mineralogical Magazine, 67 (5) 1081-1098 doi:10.1180/0026461036750144 | Journal (article/letter/editorial) | | Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a...Rhodes University, P O Box 94, Grahamstown, 6140 South Africa Department of Earth Sciences, Oxford University...another of these localities, Bok se Puts, Namaqualand, South Africa, are consistent with this scenario. Under...ferrohögbomite, Eastern Ghats Belt, India, Namaqualand, South Africa. Introduction ELEVATED concentrations...Mineralogical Society Vizianagaram (Vijayanagaram) district, an area in the Eastern Ghats Belt, attracted |  | | Report (issue) | | (Mg; Fe 2+ )2 Al14B4 Si4 O37 Werdingite ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal Data:...110:45(2) ± X-ray Powder Pattern: Bok se Puts Farm, South Africa. 5.23 (100), 5.43 (80), 4.98 (75), 2.708 (60)...Total 99.08 Chemistry: (1) Bok se Puts Farm, South Africa; by electron microprobe, B by ICP; corresponds...hercynite. On the Bok se Puts Farm, Namaqualand, Cape Province, South Africa. Name: For Dr. GÄunter Werding...Material: South African Museum, SAMG 7140{7150, and the University of Cape Town, Cape Town, South Africa. References: |  | | Journal (article/letter/editorial) | | 1997, VOL. 61, PP 7 1 3 - 7 1 8 Werdingite from the Urungwe District, Zimbabwe Department of Geological...K. Shearer Michael Wiedenbeck Introduction WERDINGITE, (Mg,Fe)2Al12(A1,Fe)2Si4B2(B,A1)2037, was originally...e - f a c i e s rock in the Namaqualand complex, Bok se Puts, South Africa, where it is inferred to have...Moore, in prep.). Grew (1996) subsequently found werdingite in two granitic pegmatites cutting granulitefacies...Magondi belt in the Urungwe District, 60 km westnorth-west of Karoi, northern Zimbabwe. The geologic situation |  | Niven, Margaret L., Waters, David J., Moore, John M. (1991) The crystal structure of werdingite, (Mg,Fe)2Al12(Al,Fe)2Si4(B,Al)4O37 and its relationship to sillimanite, mullite, and grandidierite. American Mineralogist, 76 (1-2) 246-256 | Journal (article/letter/editorial) | | pages246-256, 1991 The crystal structure of werdingite, (Mg,Fe)y',lrr(Al,Fe)2si4(B,Al)oOrr,and its relationship...Chemistry, University of Cape Town, Private Bag, RondeboschTTOO,South Africa D^q,\aoJ. Warnnsr* JonN...University of Cape Town, Private Bag, RondeboschTT0O,South Africa Ansrn-lcr Werdingite,(Mgoro,Feo,,u)rAl...borosilicatemineral newly recorded from Namaqualand, South Africa, which has a structure basedon chains...reflections (1,"1> 2oI*) and 132 parameters.Although werdingite contains five-coordinated sites superficially |  | Grew, Edward S., Armbruster, Thomas, Lazic, Biljana, Yates, Martin G., Medenbach, Olaf, Huijsmans, Joep P.P. (2011) Werdingite from a pegmatite at Almgjotheii, Rogaland, Norway: The role of iron in a borosilicate with a mullite-type structure. European Journal of Mineralogy, 23 (4) 577-589 doi:10.1127/0935-1221/2011/0023-2121 | Journal (article/letter/editorial) | | 2011, 23, 577–589 Published online June 2011 Werdingite from a pegmatite at Almgjotheii, Rogaland, Norway:...Abstract: Werdingite from a pegmatite on Almgjotheii in the aureole of the Rogaland anorthosite complex, Norway...literature data shows that the refractive indices of werdingite increase with increasing XFe, whereas the a cell...tetrahedral and two 5-coordinated sites present in type werdingite plus a new, largely vacant tetrahedral site,...show that HE138B werdingite is a Fe-dominant analogue of type werdingite. Werdingite in HE138B is intergrown |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | Buick, Ian S., Grew, Edward S., Armbruster, Thomas, Medenbach, Olaf, Yates, Martin G., Bebout, Gray E., Clarke, Geoffrey L. (2008) Boromullite, Al9BSi2O19, a new mineral from granulite-facies metapelites, Mount Stafford, central Australia: a natural analogue of a synthetic "boron-mullite". European Journal of Mineralogy, 20 (5) 935-950 doi:10.1127/0935-1221/2008/0020-1809 | Journal (article/letter/editorial) | | sillimanite or as narrow overgrowths around embayed werdingite prisms. In other samples boromullite and sillimanite...Sekaninaite-cordierite, potassium feldspar, biotite, werdingite and its Fe-dominant analogue, hercynite, and...lower SiO2 and B2 O3 contents than the assemblage werdingite + cordierite + sillimanite and thus a decrease...in SiO2 and B2 O3 leads to the replacement of werdingite by boromullite, consistent with textural relations...000 map “Geology of the Reynolds Range Region, Northern Territory (1981)” and the Australian Map Grid |  | Cempirek, J., Novak, M., Dolnicek, Z., Kotkova, J., Skoda, R. (2010) Crystal chemistry and origin of grandidierite, ominelite, boralsilite, and werdingite from the Bory Granulite Massif, Czech Republic. American Mineralogist, 95 (10) 1533-1547 doi:10.2138/am.2010.3480 | Journal (article/letter/editorial) | | of grandidierite, ominelite, boralsilite, and werdingite from the Bory Granulite Massif, Czech Republic...involving grandidierite, ominelite, boralsilite, werdingite, dumortierite (locally Sb,Ti-rich), tourmaline...prismatic crystals of boralsilite and Fe-rich werdingite. Boralsilite also occurs as separate cross-shaped...cross-shaped plumose aggregates with Fe-rich werdingite in quartz. Grandidierite is commonly rimmed by a narrow...80O37 to Al15.65B5.29Si2.71O37 and the formula of werdingite ranges from (Fe,Mg)1.44Al14.61B4.00Si3.80O37 |  | | Journal (article/letter/editorial) | | sillimanite-structure-type minerals grandidierite and werdingite, which break down near 10 kbar, the following...principle, occur as minerals of ultrahigh-pressure metamorphic rocks. Boron initially enriched in crustal rocks...nearly ubiquitous in igneous, sedimentary and metamorphic rocks, except for the highest-temperature environments...considerable depths in the Earth’s mantle during their metamorphic history (Chopin, 1984; Schreyer, 1988) necessarily...rights reserved. PII SOO24-4937(97)00024-S metamorphic rocks of the Dora Maira Mas- 252 W. Schreyer |  | | Journal (article/letter/editorial) | | exclusion from the mullite family of compounds with complex linkages of the octahedral chains or with the distance...similar to mullite are excluded because of the complex linkage of the chains, which increases the distance... 1968). The octahedral chains are linked by a complex array of polyhedra: AlO5 and MgO5 bipyramids, SiO4...B2 Al8 (Mg0.84 Fe0.16 )2 Al4 (Al0.79 Fe0.21 )2 Werdingite (B0.77 Al0.23 )2 O37 Si4 B2 (B0.77 Al0.23 )2...98 Fig. 15. Crystal structure projections of werdingite (Niven et al., 1991) approximately parallel c |  | Bailie, Russell, Abrahams, Gharlied, Bokana, Reddy, van Bever Donker, Jan, Frei, Dirk, le Roux, Petrus (2019) The geochemistry and geochronology of the upper granulite facies Kliprand dome: Comparison of the southern and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and clues to its evolution. Precambrian Research, 330. 58-100 doi:10.1016/j.precamres.2019.04.011 | Journal (article/letter/editorial) | | and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...University of the Western Cape, Bellville, Western Cape, 7535, South Africa b Schlumberger Petroleum...Matieland, Western Cape, South Africa d Department of Geological Sciences, University of Cape Town, Rondebosch |  | Ballouard, Christophe, Elburg, Marlina A., Tappe, Sebastian, Reinke, Christian, Ueckermann, Henriette, Doggart, Shane (2020) Magmatic-hydrothermal evolution of rare metal pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Ore Geology Reviews, 116. 103252 doi:10.1016/j.oregeorev.2019.103252 | Journal (article/letter/editorial) | | Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Christophe Ballouard, Marlina A. Elburg...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa), Ore Geology Reviews (2019), doi: https://doi...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Authors: Christophe Ballouard1*, Marlina...Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa 2 Spectrum Analytical Facility, University...Park, 2006, South Africa 3 Council for Geoscience, P.O. Box 775, Upington, South Africa, 8800 *Corresponding |  | | Report (volume) | | point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be "a round...Selected tourmaline-bearing vein deposits in metamorphic rocks Chapter 11. Table 4, p. 581: Selected tourmaline-bearing...system Mg0-Al203-B 2 03-Si02-H 2 0 Grandidierite Werdingite Kornerupine and prismatine (komerupine s.l.)...) Magnesiodumortierite Alkali-free dravite Complex tourmalines Dravite Uvite Elbaite Highly aluminous...185 185 185 185 185 185 186 187 Tourmaline Werdingite Wiserite Volumetric Properties Standard state | | | Report (volume) | | point 4000°C. Crystalline boron is exceedingly complex, and the number of polymorphs could be “a round...Selected tourmaline-bearing vein deposits in metamorphic Chapter 11. Table 4,p.581: Selected tourmaline-bearing...cc-occcoeste ostease cos adace eee tee nme ee eco 148 Complex toptmalines::«. Gaca fed oe. 2eh se nee ee aay...(EXCLUSIVE OF TOURMALINE) IN ROCK-FORMING IN METAMORPHIC MINERALS ENVIRONMENTS EIFOMUCEON c.. sh acie...cnntivenvnn 480 D. J. Henry & B. L. Dutrow METAMORPHIC TOURMALINE AND ITS PETROLOGIC APPLICATIONS |  | Grew, E. S., Chernosky, J. V., Werding, G., ABRAHAM, K., MARQUEZ, N., HINTHORNE, J. R. (1990) Chemistry of Kornerupine and Associated Minerals, a Wet Chemical, Ion Microprobe, and X-Ray Study Emphasizing Li, Be, B and F Contents. Journal of Petrology, 31 (5) 1025-1070 doi:10.1093/petrology/31.5.1025 | Journal (article/letter/editorial) | | is a measure of B2O3 activity in associated metamorphic fluid, whereas sillimanite B2O3 content increases...13, 2015 With growing interest in high-grade metamorphic rocks as indicators of deep crustal processes...particularly the role of protolith compositions, metamorphic fluids, and anatectic melts in the depletion...be present, at least during some stage of the metamorphic evolution. CHEMISTRY OF K O R N E R U P I N...32060 1883754 12-84-17 134E 134H 142-1B 142-1C South Africa Zimbabwe Uganda Tanzania Madagascar India |  | | Book | | Museum), who helped me through some incredibly complex crystallographic problems; Joan C. Mandarino, my...China Portugal Republic of Macedonia Republic of South Africa Romania Russia Slovakia Spain Sweden Switzerland...)s(OH) 2 ·1.SH2 O Locality: T he Kamoto East mine, District ofKolwezi, southern Shaba, Zafre (Lat. 10°46'...Locality: The Proprietary mine, Broken Hill, New South Wales, Australia. Oco1rrence: Probably from the...Fe(OH) 3 , a new mineral from Broken Hill, New South Wales: Description and structure. American Mineralogist |  | | Book (edition) | | Alpine fissures, as well as in sedimentary and metamorphic rocks and in residual and alluvial deposits....oxides and similar compounds, oxidic compounds with complex anions, and a few organic species. Mineral species...Subsidim-y anions (OH,F,O) are positioned before the complex anion , with both enclosed in square brackets,...of the valency electrons of the oxygens of the complex ions are involved in bonding to the cations". The...halides without H2O 3.B Simple halides with H2O 3.C Complex halides 3.D Oxyhalides, hydroxyhalides, and related |  | | Journal (volume) | | (Hungary) (Croatia) (Hungary) (Slovakia) (Serbia) (South Africa) (Austria) (France) (Hungary) (Hungary) (Hungary).....................285 EG55 Mineral deposits of Africa..................................................Accessory minerals: Tracers of magmatic and metamorphic evolution ........................................................705 MC101 Bond topology in complex structures ......................................inclusions in “fibrous” diamonds have identified a more complex suite of high-density fluids (HDF), ranging from |
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