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Polarite
Polarite (Pd,(Bi,Pb)), is an opaque, yellow-white mineral. Its crystals are orthorhombic pyramidal, but can only be seen through a microscope. It has a metallic luster and leaves a white streak. Polarite is rated 3.5 to 4 on the Mohs Scale.〔(Webmineral data )〕〔(Handbook of Mineralogy )〕 It was first described in 1969 for an occurrence in Talnakh, Norilsk in the Polar Ural Mountains in Russia.〔 It has also been recorded from the Bushveld igneous complex of South Africa and from Fox Gulch, Goodnews Bay, Alaska.〔 == 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「Polarite」の詳細全文を読む
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