David K. Joyce

Here is a small specimen, about 50mm across that I collected at the Ackerman Mine during this trip. It was originally covered wit hmassive calcite which I etched off with hydrochloric acid. Not particularly impressive but not bad!! The price was right! Arsenopyrite crystals up to 10mm and larger occur regularly at the mine. The trick is to find piece that you can etch and leave some great arsenopyrite crystals attached to the quartz or protruding from the calcite. For information only. Not for sale.