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Quartz : SiO2, Montmorillonite : (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O

Copyright © Rob Lavinsky & irocks.com
 
 
minID: 39E-8K3

Quartz : SiO2, Montmorillonite : (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 5.9 cm x 4.5 cm x 2.7 cm

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