Fluorite, Sphalerite, Pyrite

Unknown Owner

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This BIG octahedron of rare and sought-after pink fluorite (2.5 cm along the edge) has a rough look to it, but it is not from etching or contact: what you are seeing is reflection from thousands of micro-faces, sparkling back at you, on the main face surfaces. The interior is actually gemmy. This big crystal sits on a bed of sphalerite, which in turn is on a matrix of crystallized and massive pyrite. From a famous series of finds in the 1980s, and long in the collection of Dan Belsher who dealt a lot in Peruvian minerals at the time.