翻訳と辞書 Words near each other ・ Eucrossus ・ Eucrostes ・ Eucrostes indigenata ・ Eucrotala ・ Eucryphia ・ Eucryphia cordifolia ・ Eucryphia glutinosa ・ Eucryphia jinksii ・ Eucryphia lucida ・ Eucryphia milliganii ・ Eucryphia moorei ・ Eucryphia wilkiei ・ Eucrypta ・ Eucrypta chrysanthemifolia ・ Eucrypta micrantha ・ Eucryptite ・ Eucryptogona ・ Eucryptogona trichobathra ・ Euctemon ・ Euctemon (crater) ・ Euctenidiacea ・ Eucteniza ・ Euctenizidae ・ Euctenospila ・ Euctenostega ・ Eucumbene Dam ・ Eucumbene River ・ Eucyanoides ・ Eucyclidae ・ Eucyclodes Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Eucryptite ： ウィキペディア英語版 Eucryptite Eucryptite is a lithium bearing aluminium silicate mineral with formula LiAlSiO4. It crystallizes in the trigonal - rhombohedral crystal system. It typically occurs as granular to massive in form and may pseudomorphically replace spodumene. It has a brittle to conchoidal fracture and indistinct cleavage. It is transparent to translucent and varies from colorless to white to brown. It has a Mohs hardness of 6.5 and a specific gravity of 2.67. Optically it is uniaxial positive with refractive index values of nω = 1.570 - 1.573 and nε = 1.583 - 1.587. Its typical occurrence is in lithium-rich pegmatites in association with albite, spodumene, petalite, amblygonite, lepidolite and quartz.〔 It occurs as a secondary alteration product of spodumene. It was first described in 1880 for an occurrence at its type locality, Branchville, Connecticut.〔 Its name was from the Greek for ''well concealed'', for its typical occurrence embedded in albite.〔〔 ==References== 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「Eucryptite」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.