An exceptional miniature with robust, spiky hessite crystals shooting out from a common core. This is classic type locality material, now hard to come by in good specimens! It is from the American Museum of Natural History in NYC, and note the early accession number #831, dating it to the 1800's. Anyways, most were mined by 1900, as well. With sharp crystals to nearly 1 cm, this is a choice example for the sizer and price range. The piece also has its original patina, and is not cleaned with acid, as you can tell by the associated calcite crystals in crevasses. Ex Lawrence Conklin collection, obtained in trade from the American Museum of Natural History. You can see it displays either horizontally or vertically