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Mixite & Cornwallite

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UVM659998

Mixite & Cornwallite

Classic Locality

Description Tabs

Description
Locality: 
Gold Hill District, Tooele County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.1 × 2.1 cm
Description

A vuggy matrix specimen in which nearly every vug features acicular mixite on botryoidal green cornwallite.   

Mineral Data
What's on the rock

Mixite

Formula: 
BiCu6(AsO4)3(OH)6·3H2O
Strunz: 
8.DL.15
Crystal System: 
Hexagonal
Hardness: 
3.0 - 4.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

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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