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NA230 - Acanthite, Polybasite Guanajuato, Mexico cabinet - 10 x 5.5 x 3.5 cm Solid mass of Acanthite and Polybasite crystals - there are hundreds of Polybasite crystals along with tiny cubes of Acanthite. This specimen came out of a collection that was built in the 1970s, so dates back at least to the 70s. ©2010-2018 Marin Mineral |