Colemanite

Unknown Owner

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A hugeColemanite crystal from the Boraxo Mine, Inyo County, California. The sharp presentation faces are super-glassy and light-amber colored. Some of the faces have showy, very pronounced stepped growth. The back of piece has micro-crystallized faces and the sides and bottom are cleavage faces. All of the display faces are pristine. 13.0 x 12.5 x 9.3 cm