翻訳と辞書 Words near each other ・ Vermeș ・ Vermicelli ・ Vermicino ・ Vermicompost ・ Vermicularia ・ Vermicularia bathyalis ・ Vermicularia fargoi ・ Vermicularia gracilis ・ Vermicularia knorrii ・ Vermicularia radicula ・ Vermicularia spirata ・ Vermiculated fishing owl ・ Vermiculated spinefoot ・ Vermiculation ・ Vermiculine ・ Vermiculite ・ Vermiform ・ Vermiform Records ・ Vermifrux ・ Vermiglio ・ Vermiglio (surname) ・ Vermilac River ・ Vermilacinia ・ Vermilacinia acicularis ・ Vermilacinia cedrosensis ・ Vermilacinia cephalota ・ Vermilacinia cerebra ・ Vermilacinia ceruchis ・ Vermilacinia ceruchoides ・ Vermilacinia combeoides 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 Vermiculite ： ウィキペディア英語版 Vermiculite Vermiculite is a hydrous phyllosilicate mineral. It undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently, and the effect is routinely produced in commercial furnaces. Vermiculite is formed by weathering or hydrothermal alteration of biotite or phlogopite.〔http://www.mindat.org/min-4170.html Mindat.org〕 Large commercial vermiculite mines currently exist in Russia, South Africa, China, and Brazil. ==Occurrence== Vermiculite was first described in 1824 for an occurrence in Millbury, Massachusetts, USA. Its name is from Latin ''vermiculare,'' ''to breed worms,'' for the manner in which it exfoliates when heated.〔 It typically occurs as an alteration product at the contact between felsic and mafic or ultramafic rocks such as pyroxenites and dunites. It also occurs in carbonatites and metamorphosed magnesium rich limestone. Associated mineral phases include: corundum, apatite, serpentine and talc. It occurs interlayered with chlorite, biotite and phlogopite.〔http://rruff.geo.arizona.edu/doclib/hom/vermiculite.pdf Handbook of Mineralogy〕 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「Vermiculite」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.