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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 Auerlite ： ウィキペディア英語版 Auerlite Auerlite is a rare North Carolina mineral variety, remarkably rich in thoria, named after Carl Auer von Welsbach, the inventor of the Welsbach incandescent gas mantle. It is considered to be a phosphorus bearing variety of thorite.〔(Auerlite on Mindat.org )〕 == Description == It was originally described as a hydrous silico-phosphate of thorium, ThO2(SiO2,⅓P2O5)+2H2O, i.e. thorite in which part of the silica is replaced by phosphoric acid. The crystals are tetragonal, lemon-yellow to brown-red in colour, and sub-translucent to opaque. The mineral is very brittle; its hardness is 2.5 to 3, and its specific gravity 4.422 to 4.766, the darker crystals having the greatest density. Analysis gave the following results: — 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「Auerlite」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.