Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Arthurite & Pharmacosiderite

Views:
Watches:
ESM657529

Arthurite & Pharmacosiderite

Description Tabs

Description
Locality: 
Majuba Hill Mine, Antelope, Pershing County, Nevada, United States of America
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 2.4 × 1.3 cm
Description

Neon green sprays of arthurite crystals with cubes of pharmacosiderite

Mineral Data
What's on the rock

Arthurite

Formula: 
CuFe3+2(AsO4)2(OH)2·4H2O
Strunz: 
8.DC.15
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Type Locality: 
Hingston Down Consols, Clitters United Mines, Gunnislake, Calstock, Callington District, Cornwall, England, UK

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK