| QUARTZ, WURTZITE, PYRITE, Butte, Montana, 5 x 3 x 2 cm | |
 | Miniature combination specimen from Butte. I believe that Wurtzite is the low temperature dimorph of Sphalerite, a zinc sulfide. During the last five years some Wurtzite specimens have come out of Peru. This is from the Gil Griffin collection. |
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