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Morinite Wavellite & Perhamite

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BCK1049592

Description Tabs

Description
Locality: 
Silver Coin Mine, Valmy, Humboldt County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 1.9 × 1.6 cm
Description

You are bidding on a thumbnail sample hosting very rich, globular clusters of cuprian-morinite crystals with colorless wavellite prisms and rich, tiny white clusters of perhamite/iangreyite. 

Mineral Data
What's on the rock

Morinite

Formula: 
NaCa2Al2(PO4)2(OH)F4·2H2O
Strunz: 
8.DM.05
Hardness: 
4.0 - 4.5
Streak: 
White
Type Locality: 
Montebras Mines, Montebras, Soumans, Creuse, Limousin, France

Wavellite

Formula: 
Al3(PO4)2(OH,F)3·5H2O
Strunz: 
8.DC.50
Hardness: 
3.5 - 4.0
Streak: 
White.
Type Locality: 
High Down Quarry, Filleigh, North Devon, Devon, England, UK

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

Seller Information

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