| Australian National University, Canberra, ACT 0200, Australia 4 Zentrale Elektronen-Mikrosonde, Institut für...Geosciences, University of Sydney, NSW 2006, Australia 1 Abstract Boralsilite, the only natural anhydrous...Fe-dominant analogue of werdingite in B-rich metapelites at Mount Stafford, central Australia; its composition...solution containing up to 30% (Mg,Fe)2Al14B4Si4O37 (werdingite). Boralsilite in the Larsemann Hills is commonly...crystallization for precipitation of boralsilite, werdingite, and grandidierite instead of elbaite and B minerals |
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(2023) Boromullite. Handbook of Mineralogy. Mineralogical Society of America |
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| with or overgrowths on sillimanite, or embaying werdingite. Physical Properties: Cleavage: None. Fracture:...675(3) Z=2 X-ray Powder Pattern: Mount Stafford, central Australia. 3.38 (100), 2.19 (80), 1.512 (80)...10 0.07 0.00 0.01 0.40 100.12 (1) Mount Stafford, central Australia; average of 11 electron microprobe...boron-rich peletic rocks. Association: Sillimanite, werdingite, sekaninaite-cordierite, potassium feldspar,... Distribution: Mount Stafford, ~170 km northwest of Alice Springs, central Australia. Name: Recognizes |
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Palya, Annie P., Buick, Ian S., Bebout, Gray E. (2011) Storage and mobility of nitrogen in the continental crust: Evidence from partially melted metasedimentary rocks, Mt. Stafford, Australia. Chemical Geology, 281 (3) 211-226 doi:10.1016/j.chemgeo.2010.12.009 |
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| partially melted metasedimentary rocks, Mt. Stafford, Australia Annie P. Palya a, Ian S. Buick b, Gray E...Migmatite Mount Stafford Partial melting Isotope fractionation a b s t r a c t The Mt. Stafford region, central...central Australia, provides well-exposed metasedimentary rocks whose protoliths were deposited at ca. 1...the shallow- to midcontinental crust. In the Mt. Stafford metapelitic/metapsammitic suite, whole-rock δ15Nair...Although assessments of element loss in the Mt. Stafford suite are greatly complicated by the large degree |
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Piilonen, P. C., Poirier, G., Tait, K. T. (2009) New Mineral Names. American Mineralogist, 94 (4) 648-652 doi:10.2138/am.2009.540 |
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| from granulite-facies metapelites, Mount Stafford, central Australia: a natural analogue of a synthetic...boromullite, Mount Stafford, is situated about 170 km northwest of Alice Springs, central Australia (22°01'S...(22°01'S, 132°40'E). The Mount Stafford area comprises Proterozoic metasedimentary and metagranitic rocks of...of the Arunta Region. Boromullite formed during anatexis of B-rich pelitic rocks under granulite facies...Sekaninaite-cordierite, potassium feldspar, biotite, werdingite, and its Fe-dominant analogue, hercynite, and |
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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 |
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| 2011, 23, 577–589 Published online June 2011 Werdingite from a pegmatite at Almgjotheii, Rogaland, Norway:...1030 BN Amsterdam, The Netherlands Abstract: Werdingite from a pegmatite on Almgjotheii in the aureole...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 |
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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 |
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| 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 |
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Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 |
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| Kotlářská 267/2, 611 37 Brno, Czech Republic Central European Institute of Technology (CEITEC), Masaryk...∼0.5 mm thick, or rarely as inclusions in the central parts of spodumene crystals. Long prismatic crystals...other borosilicate minerals, both anhydrous (werdingite, grandidierite-ominelite) and hydrous (prismatine...located in the north-east part of the Itremo Region, Central Madagascar (Fig. 1). This pegmatite field is...using Raman spectroscopy in the 3000– 4000 cm−1 region. When taking into account the contents of light |
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Cempírek, Jan, Grew, Edward S., Kampf, Anthony R., Ma, Chi, Novák, Milan, Gadas, Petr, Škoda, Radek, Vašinová-Galiová, Michaela, Pezzotta, Federico, Groat, Lee A., Krivovichev, Sergey V. (2016) Vránaite, ideally Al16B4Si4O38, a new mineral related to boralsilite, Al16B6Si2O37, from the Manjaka pegmatite, Sahatany Valley, Madagascar. American Mineralogist, 101 (9) 2108-2117 doi:10.2138/am-2016-5686 |
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| 99.31. Raman spectroscopy in the 3000–4000 cm–1 region rules out the presence of significant OH or H2O...discussing the crystallographic relationships between werdingite and other phases with mullite-type structures...one of two slabs constituting the structure of werdingite, (Mg,Fe)2Al12(Al,Fe)2Si4(B,Al)4O37, has the ideal...the linkages of [6]Al, Si, and B polyhedra in werdingite and vránaite are essentially identical. Electron...Antsirabe in the northeast part of the Itremo Region, Central Madagascar (Novák et al. 2015). 2114 CEMPÍREK |
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Gatta, G. Diego, Rotiroti, Nicola, Fisch, Martin, Armbruster, Thomas (2010) Stability at high pressure, elastic behavior and pressure-induced structural evolution of “Al5BO9”, a mullite-type ceramic material. Physics and Chemistry of Minerals, 37 (4) 227-236 doi:10.1007/s00269-009-0327-x |
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| from granulite-facies metapelites, Mount Stafford, central Australia, a natural analogue of a synthetic...Schreyer W (1992) Synthesis and stability of werdingite, a new phase in the system MgO–Al2O3–B2O3–SiO2 |
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(2007) Goldschmidt Abstracts 2007- B. Geochimica et Cosmochimica Acta, 71 (15) doi:10.1016/j.gca.2007.06.012 |
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| and subeffusive formations in the Transbaikalian region (Russia) three steady groups of rocks. These groups...detrital zircons in Late Paleozoic turbidte units of northern Chile: Implications for terrane processes The...turbidite units are widely exposed along the coast of northern Chile and represent parts of an accretionary wedge...Gondwana’s Late Paleozoic active margin in the present Central Andes. The units overstep the boundary between...the El Toco and Las Tórtolas Formations in the northern, autochthonous part of the study area, and 2 samples |
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