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Philipsbornite & Pharmacosiderite

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CSL620198

Philipsbornite & Pharmacosiderite

Rare Mineral

Description Tabs

Description
Locality: 
Gold Hill Mine, Tooele County, Utah, United States of America
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.1 × 0.5 cm
Description

Philipsbornite is a rare lead-aluminium-arsenate mineral forms pale yellow-green masses of tiny globular aggregates in the cavities with yellow brown cubic crystals of pharmacosiderite. 

 

Mineral Data
What's on the rock

Philipsbornite

Formula: 
PbAl3(AsO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
trigonal
Hardness: 
4.5
Type Locality: 
Red Lead Mine, Dundas mineral field, Zeehan district, Tasmania, Australia

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

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