An outstanding tabular group of large parallel-growth crystals, with vitreous and attractive chocolate lustre. Few documented specimens from this important classic old locality survive today. This is as good as any I have seen, and of display quality and full miniature size, to boot. Ex. American Museum of Natural History, Clarence Bement collection, donated in 1910.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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