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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 Canavesite ： ウィキペディア英語版 Canavesite Canavesite, Mg2(HBO3)(CO3)∙5H2O, is a rare carboborate mineral from the abandoned Brosso mine in Italy. Canavesite is a secondary mineral that occurs due to the weathering of ludwigite-magnetite skarn on the surface of mine walls. The physical properties consist of a milky-white rosette-like aggregates of elongated transparent fibers shown in figure one.〔Chao, G.Y., Fliesher, Mandarino,J.A. (1979) New Mineral Names *.,American Mineralogist, 64, 652–659.〕 It has the crystal symmetry of a monoclinic with a diffraction symbol of ''2/mP-/-''. ==History== The pyrite mine, Brosso, in Italy where in 1964 Giussani & Vighi saw and described boron mineralization. They noticed secondary minerals forming between szaibelyite and ludwigite at the point where they come into contact with each other inside magnetite skarns. Years later in 1972 a few members from the Gruppo Mineralogico Lombardo found the first sample of a new unknown mineral around the same location. Since then canavesite has been traded as nesquehonite and added to geologic collections. Canavestie is one of few carboborates known to man. The name canavesite originates from the district of Canavese where the pyrite mine is located.〔Ferraris, G., Franchini-Angela, M.(1978) Canavesite, A New Carboborate Mineral from Brosso, Italy.,Canadian Mineralogist, 16, 69-73.〕 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「Canavesite」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.