 | | Journal (article/letter/editorial) | | substitution on the crystal structures of the grandidierite-ominelite series TASHIA J. DZIKOWSKI,1 LEE A...and crystal structure of seven members of the grandidierite-ominelite (MgAl3BSiO9–Fe2+Al3BSiO9) series with...decrease the Si-O bond distances. Keywords: Grandidierite, ominelite, crystal structure, substitution...substitution, borosilicates INTRODUCTION Grandidierite, (Mg,Fe2+)Al3BSiO9, (Lacroix 1902; McKie 1965; Stephenson...substitution on the crystal structure of the grandidierite-ominelite series, and to investigate the reasons |  | Hiroi, Yoshikuni, Grew, Edward S., Motoyoshi, Yoichi, Peacor, Donald R., Rouse, Roland C., Matsubara, Satoshi, Yokoyama, Kazumi, Miyawaki, Ritsuro, Mcgee, James J., Su, Shu-Chun, Hokada, Tomokazu, Furukawa, Noboru, Shibasaki, Hiroshi (2002) Ominelite, (Fe,Mg)Al3BSiO9 (Fe2+analogue of grandidierite), a new mineral from porphyritic granite in Japan. American Mineralogist, 87 (1) 160-170 doi:10.2138/am-2002-0117 | Journal (article/letter/editorial) | | Ominelite, (Fe,Mg)Al3BSiO9 (Fe2+ analogue of grandidierite), a new mineral from porphyritic granite in...Ominelite, (Fe,Mg)Al3BSiO9, is the Fe analog of grandidierite. The mineral occurs as elongated and euhedral...confirms that ominelite is isostructural with grandidierite with no detectable substitution of Al by Fe3+...at Andrahomana, Madagascar (Lacroix 1902), grandidierite, (Mg,Fe)Al3BSiO9, has been described from about...sample from Sakatelo, Madagascar. Consequently, grandidierite is generally considered to be the Mg-dominant |  | | Journal (article/letter/editorial) | | cordierite, with or without K-feldspar or garnet. Grandidierite has also been recognized in sillimanite-rich...cm) and brown, chromium spinel (0.05–1.5 mm). Grandidierite also occurs on the margin of symplectites of...involves the brown-coloured spinel associated with grandidierite, which can contain up to 0.02 mol p.f.u. of...with 70 91 no apparent systematic variation. Grandidierite has a tight X range between 0.59 Fe and 0.60...significant minor mineral within metapelite, and grandidierite occurs in extensively melted Zone 4 rocks that |  | | Report (volume) | | dumortierite, grandidierite, and kornerupine Chapter 9. Table 6, pp. 402-403: Occurrences of grandidierite Chapter..."Pseudosinhalite" The system Mg0-Al203-B 2 03-Si02-H 2 0 Grandidierite Werdingite Kornerupine and prismatine (komerupine...Description Chemical composition Occurrence Grandidierite Description Chemical composition Occurrence...borofluorosilicate from the Golden Horn batholith, Okanogan County, Wahington. Am Mineral 65:1138-1142 Bogomolov MA...Barnes C (1980) Magnesioaxinite from Luning, Nevada, [USA] and some nomenclature designations for the axinite | | | Report (volume) | | dumortierite, grandidierite, and kornerupine Chapter 9. Table 6, pp. 402-403: Occurrences of grandidierite Chapter...Ac sunccn sack ood cesccece tenn aaa cane syk ees Usa RUT TRO Re ete ret ee 182 BAK CIC sc cee ca thabucasats...ACKNOWICURIMENES ss ianacnicceneeecet es oe are oe eee Lae oe MORTON la de ede eleanor es 692 Appendix. Brief Overview...borofluorosilicate from the Golden Horn batholith, Okanogan County, Wahington. Am Mineral 65:1138-1142 ; Bogomolov...C (1980) Magnesioaxinite from Luning, Nevada, [USA] and some nomenclature designations for the axinite |  | | Report (issue) | | George Washington University Washington, D.C. 20052 USA Louise Corriveau Geological Survey of Canada GSC-Québec...Skidmore College Saratoga Springs, New York 12866 USA Mervin J. Bartholomew Department of Earth Sciences...Tennessee 38152 USA Memoir 197 3300 Penrose Place, P.O. Box 9140 ■Boulder, Colorado 80301-9140, USA 2004 MWR197...Place, P.O. Box 9140, Boulder, Colorado 80301-9140, USA. Copyright is not claimed on any material prepared...Place, P.O. Box 9140, Boulder, Colorado 80301-9140, USA www.geosociety.org Printed in U.S.A. GSA Books Science |
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