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Pecoraite
Pecoraite is a Nickel silicate mineral and a member of the serpentine group. It is monoclinic and has a chemical composition of Ni3(Si2O5)(OH)4 It is associated with the weathering-and-or oxidation of meteorites or nickel sulfide minerals such as Millerite. It is also found as shears in ultramafic rocks.〔(【引用サイトリンク】url=http://www.mindat.org/min-3139.html )〕 Pecoriate is typically a green, lime green, or bluegreen mineral with a waxy, or earthy luster and a mohs hardness of 2.5.〔(【引用サイトリンク】url=http://webmineral.com/data/Pecoraite.shtml )〕 Common textural habits associated with Pecoraite are curved plates, spirals and tubes. It can also be granular and massive. ==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「Pecoraite」の詳細全文を読む
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