翻訳と辞書 Words near each other ・ Pyrola asarifolia ・ Pyrola chlorantha ・ Pyrola grandiflora ・ Pyrola media ・ Pyrola minor ・ Pyrola picta ・ Pyrola rotundifolia ・ Pyrolant ・ Pyroligneous acid ・ Pyrolirion ・ Pyrolisk ・ Pyrolite ・ Pyrolobus ・ Pyrolobus fumarii ・ Pyroloideae ・ Pyrolusite ・ Pyrolysis ・ Pyrolysis gasoline ・ Pyrolysis oil ・ Pyrolysis oil (disambiguation) ・ Pyrolysis–gas chromatography–mass spectrometry ・ Pyrolytic carbon ・ Pyrolytic chromium carbide coating ・ Pyrolytic coating ・ Pyromaia ・ Pyromaia cuspidata ・ Pyromaia tuberculata ・ Pyroman ・ Pyromancy ・ Pyromania 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 Pyrolusite ： ウィキペディア英語版 Pyrolusite Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts. It has a metallic lustre, a black or bluish-black streak, and readily soils the fingers. The specific gravity is about 4.8. Its name is from the Greek for ''fire'' and to ''wash'', in reference to its use as a way to remove tints from glass.〔 ==Occurrence== Pyrolusite and romanechite are among the most common manganese minerals. Pyrolusite occurs associated with manganite, hollandite, hausmannite, braunite, chalcophanite, goethite and hematite under oxidizing conditions in hydrothermal deposits. It also occurs in bogs and often results from alteration of manganite.〔 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「Pyrolusite」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.