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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 Keweenawite ： ウィキペディア英語版 Keweenawite Keweenawite is a discredited mineral species. It was described as an arsenide of copper, nickel, and cobalt containing 39% to 54% copper, 9.7% to 20% nickel, and 0.9% cobalt.〔(World Mines Register, Volumes 4-5 )〕 Keweenawite was discovered in July 1901, in the Mohawk Mine, Keweenaw County, Michigan. George A Koenig analyzed and named the copper ore.〔(World Mines Register, Volume 2 )〕 ==History== Keweenawite was first discovered, in July of 1901, located on the fifth level of the Mohawk Mine between Shaft No. 1 and Shaft No. 2. Fred Smith, mine superintendent, sent specimens to George A Koenig for analysis. Dr. Koenig deemed it to be a new mineral species and named it Keweenawite, after its discovery locality, Keweenaw County. 〔(The American journal of science, Volume 164 )〕 However, a re-analysis of the material in 1971 found the keweenite to be a mixture of the copper and nickel arsenates: α-domeykite, niccolite and rammelsbergite.〔Moore, Paul B.; ''Copper-Nickel Arsenides of the Mohawk No. 2 Mine, Mohawk, Keweenaw Co., Michigan,'' American Mineralogist, V. 56, July-August, 1971 (PDF )〕 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「Keweenawite」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.