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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 Oldhamite ： ウィキペディア英語版 Oldhamite Oldhamite is a calcium magnesium sulfide mineral with formula (Ca, Mg)S.〔〔 Ferrous iron may also be present in the mineral resulting in the formula: (Ca,Mg,Fe)S.〔 It is a pale to dark brown accessory mineral in meteorites. It crystallizes in the cubic crystal system, but typically occurs as anhedral grains between other minerals. ==Discovery and occurrence== It was first described in 1862 for an occurrence in the Bustee meteorite, Gorakhpur, Uttar Pradesh, India. It was named for Irish geologist Thomas Oldham (1816–1878), the Director of the Indian Geological Survey.〔〔 It occurs as an interstitial mineral phase between silicate minerals in enstatite chondrite and achondrite meteorites.〔〔 It occurs in association with enstatite, augite, niningerite, osbornite, troilite, gypsum and calcite.〔 It has been reported from a variety of meteorite locations around the world including the Allan Hills 84001 meteorite of Antarctica. It has also been reported from a slag occurrence in France and a coal deposit in Poland.〔 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「Oldhamite」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.