Mineral: Colemanite
Locality: Death Valley, Inyo County, California, USA
Dimensions: 8 x 8.5 x 5 cm / main crystal: 7.3 cm

Description: Mass: 231 g MIM number:1927 Intact, twinned, diamond shaped white and translucent crystal with smaller crystals at the base. Photographer: Roberto Appiani Publication: "Minéraux - Le Guide des Passionnés" Ex collections: American Museum of Natural History, N.Y. (USA), Citran (Italie), Francesco Bedogné (Italie)

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