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Bariopharmacosiderite & Cornwallite

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BCK719090

Bariopharmacosiderite & Cornwallite

Martin Jensen collection
Classic Locality

Description Tabs

Description
Locality: 
Centennial Eureka Mine, Eureka, Tintic, Juab County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.3 × 1.7 cm
Description

You are bidding on a thumbnail sample with some small but very sharp, nice orange cubes of bariumpharmacosiderite crystals with green globs of cornwallite and malachite. A very good sample of the species from this locality collected by Martin in 1993. 

Mineral Data
What's on the rock

Bariopharmacosiderite

Formula: 
Ba0.5Fe3+4(AsO4)3(OH)4·5H2O
Strunz: 
8.DK.10
Crystal System: 
Tetragonal
Hardness: 
2.5
Type Locality: 
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

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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