  Rheniite.
Description from the source:
Rheniite (Re S2 tric.), Vulkan Kudriavy, Iturup, Kurilen, Russia. Dark very lustrous, metallic crust-microcrystals on lava. Extremely rare. 2x1,5x1,5 cm; 3 g.
Source: Simone Citon
Contributor: John Gray
Acquired: 28 January, 2009
Text Updated: 29 January, 2009
Price: Trade
Size: 0.75"
Composition: ReS2
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