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Chalcedony & Chrysocolla

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RBM645879

Chalcedony & Chrysocolla

Description Tabs

Description
Locality: 
Manto Tres Gracias Mine, Diego de Almagro, Chañaral Province, Atacama Region, Chile
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 5 × 4 cm
Description

Adorable sample covered by a Druze chalcedony, which is characterized by nodules with perfect high brightness

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

Seller Information

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