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Quartz, Montmorillonite

Locality: White Queen Mine (Queen mine; White Queen prospect), Hiriart Mountain (Hariat Mtn; Harriot Mtn; Heriart Mtn; Heriot Mtn; Hiriat Hill), Pala, Pala District, San Diego Co., California, USA

The quartz crystals in this cluster, sharp and lustrous, contain inclusions of montmorillonite (Hydrated Sodium Calcium Aluminum Magnesium Silicate Hydroxide), giving them a creamy and very slightly pinkish tone. This is an old piece from the White Queen Mine. The crystals show a fine glassy luster. 5.9 x 4.5 x 2.7 cm

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Photo added: 8th Nov 2005

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