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Perhamite & Variscite

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SER123110

Perhamite & Variscite

Description Tabs

Description
Locality: 
Silver Coin Mine, Valmy, Humboldt County, Nevada, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 2.1 × 3.1 cm
Description

a large vug full of silky, rounded, tiny perhamite crystals on variscite

Mineral Data
What's on the rock

Perhamite

Formula: 
Ca3Al7.7Si3P4O23.5(OH)14.1·8H2O
Strunz: 
8.DO.20
Hardness: 
5.0
Streak: 
white
Type Locality: 
Dunton Gem Quarry, Newry, Oxford Co., Maine, USA

Variscite

Formula: 
AlPO4·2H2O
Strunz: 
8.CD.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Meßbach Quarry, Meßbach, Plauen, Vogtland, Saxony, Germany