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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 Hardystonite ： ウィキペディア英語版 Hardystonite Hardystonite is a rare calcium zinc silicate mineral first described from the Franklin, New Jersey, USA zinc deposits.〔 It often contains lead, which was detrimental to the zinc smelting process, so it was not a useful ore mineral.〔http://simplethinking.com/palache/hardystonite.stm Palache, Charles. The Minerals of Franklin and Sterling Hill, Sussex County, New Jersey. USGS Professional Paper 180, 1935.〕 Like many of the famous Franklin minerals, hardystonite responds to short wave ultraviolet (254 nm wavelength) light, emitting a fluorescence from dark purple to bright violet blue. In daylight, it is white to gray to light pink in color, sometimes with a vitreous or greasy luster. It is very rarely found as well formed crystals, and these are usually rectangular in appearance and rock-locked.〔http://franklin-sterlinghill.com/dunn/ch16/hardystonite.stm Dunn, Pete J. Franklin and Sterling Hill, New Jersey: the world's most magnificent mineral deposits. Dr. Pete J. Dunn, 2004.〕 Hardystonite has a chemical composition of Ca2ZnSi2O7. It is frequently found with willemite (fluoresces green), calcite (fluoresces red), and clinohedrite (fluoresces orange). Hardystonite can be found altered to clinohedrite CaZn(SiO4)·H2O through direct hydrothermal alteration.〔 Other minerals often associated with hardystonite are franklinite, diopside, andradite garnet, and esperite (fluoresces yellow). It was first described in 1899 by J.E. Wolff, when the New Jersey Zinc Company mines were located in what was called Franklin Furnace, in Hardyston Township, New Jersey.〔 ==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「Hardystonite」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.