A superb specimen of excellently formed Arsenopyrite crystals with Muscovite from the Yaogangxian Mine, China. Fine bright metallic silvery well-formed wedge form crystals of Arsenopyrite measure to a good 4cm+, with a later development of yellowish crystalline-botryoidal Muscovite, and a single green-blue crystal of Fluorite. A fine Arsenopyrite from the mine.
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