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Chrysocolla

System: Orthorhombic
Colour: Green, bluish green, ...
Lustre: Vitreous, Waxy, Earthy
Hardness: 2½ - 3½

A mineral of secondary origin, commonly associated with other secondary copper minerals, it is typically found as glassy botryoidal or rounded masses or bubbly crusts, and as jackstraw mats of tiny acicular crystals or tufts of fibrous crystals. Copper-bearing allophane can look similar.

Photo
 Malachite, Chrysocolla
Locality: Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Copyright © Rob Lavinsky

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