11fbdjis ((ACANTHITE, PYRITE, QUARTZ)), $10 MINIMUM BID, Algonquin Mine, Philipsburg, Granite County, Montana, 6 x 6 x 2 cm, Miniature, | |
Here is a specimen with a sawn and polished surface. There is white to pink Quartz and brassy Pyrite. The black is the Acanthite |