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Olivenite & Cornwallite

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HCH543595

Olivenite & Cornwallite

Description Tabs

Description
Locality: 
Inúbia Mine, Inúbia, Piatã, Bahia, Brazil
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 9 × 4 cm
Largest Crystal: 
0.20cm
Description

Uncommon speciem from Brazil with olivegreen crystals of Olivenite up to 2mm large and crystalline emeraldgreen aggregates of Cornwallite in parageneses of Malachite rich on Limonite.

Mineral Data
What's on the rock

Olivenite

Formula: 
Cu2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Cornwallite

Formula: 
Cu5(AsO4)2(OH)4
Strunz: 
8.BD.05
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Seller Information

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