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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cyrilovite ： ウィキペディア英語版 Cyrilovite Cyrilovite (NaFe33+(PO4)2(OH)4•2(H2O)) is a hydrous sodium iron phosphate mineral. It is isomorphous and isostructural with wardite, the sodium aluminium counterpart.〔Lindberg, M.L. (1957) Relationship of the minerals avelinoite, cyrilovite, and wardite. American Mineralogist, 42, 204-213〕 Cyrilovite is found in granitic pegmatites.〔Fransolet, A.M., Cooper, M.A., Cerny, P., Hawthorne, C., Chapman, R. (2000) The tanco pegmatite at Bernic Lake, Southeastern Manitoba. The Canadian Mineralogist, 38, 893-898〕 It was first discovered in 1953 in a pegmatite at Cyrilov, near Velké Meźiřiči, West Moravia, Czech Republic.〔http://www.mindat.org/min-1206.html Mindat.org〕 == Composition == The chemical formula of cyrilovite is NaFe3+3(PO4)2(OH)4•2(H2O).〔http://rruff.geo.arizona.edu/doclib/hom/cyrilovite.pdf Handbook of Mineralogy〕 Parent phosphate minerals, fluorapatite and triplite-zwieselite, were transformed by hydrothermal alteration and weathering to give a complex, microcrystalline intergrowth of secondary phosphate minerals that include cyrilovite.〔Lottermoser, B., Lu, J. (1997) Petrogenesis of rare-element pegmatites in the Olary Block, South Australia .1. Mineralogy and chemical evolution. Mineralogy & Petrology, 59, 1-19〕 The sequence of phosphate transformations ended with the formation of cyrilovite within the fluorapatite fractures and the replacement of fluorapatite by lipscombite and crandallite-group minerals.〔 Fransolet suggest that a part of the leached Na leads to the precipitation of cyrilovite, in the fissures cause by the volume decrease resulting from the transformation of typhylite to heteresoite.〔 Mobilization of alkalis and of relatively immobile elements including aluminium and rare earth elements are subsequently incorporated into precipitating cyrilovite, lipscombite and crandallite-group minerals.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cyrilovite」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.