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Weight: 346 grams
also noted for its quartz and associated minerals
This oddball specimen is a combination of quartz and calcite with a coating of chalcopyrite
Originally developed as a zinc ore mine in the late 1960s
A 20 mile long smoke trail from the fall remained the sky for several hours after impact
Natural Mintabie Opal on Sandstone TF2031 lava stone Weight: 346 gramsNatural Mintabie Opal on Sandstone Approx. Dimensions: 2x2x0. 5 inches Approx. Weight: 36. 8 grams Locality: Mintabie, South Australia Mintabie opal comes from the Mintabie opal fields in South Australia, known for producing vibrant, high quality opals ranging from milky white to black, often with striking color flashes and unique patterns like color bars. Mined from silicified sandstone, these opals are prized for their clarity, hardness, and diverse
