POLYBASITE

Crystal Classics Verified independent store

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This small cabinet specimen has two important qualities which make it something rather special. Number one it is from Clara mine, one of the world's most remarkable mineral localit ies and a firm favourite amongst collectors. Second, not only is it the relatively rare silver-copper-antimony-arsenic sulphosalt Polybasite but forming Polybasite crystals you can actually recognise opposed to a more typical grey granular mass! The Polybasite forms very well defined pseudo-hexagonal crystals across an area of approximately 10 x 8 mm, each of a bluish steely silver with a bright metallic lustre. The crystal faces are covered with a geometric pattern of concentric growth lines which mimic the overall crystal symmetry. These nestle amongst tiny milky Quartz crystals on top of a block of massive grey, cream and rusty Quartz matrix. The Clara mine is located in the Rankach Valley near to Oberwolfach, in Germany's Black Forest. Show more