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Perhamite Wavellite Fluellite & Lipscombite

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Perhamite Wavellite Fluellite & Lipscombite

Description Tabs

Description
Locality: 
Silver Coin Mine, Valmy, Humboldt County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 2.5 × 1.1 cm
Description

Several platy , silky white perhamite crystals with colourless wavellite, fluellite and dark green lipscombite

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

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

Fluellite

Formula: 
Al2(PO4)F2(OH)·7H2O
Strunz: 
8.DE.10
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Stenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, St Austell District, Cornwall, England, UK

Lipscombite

Formula: 
Fe2+Fe3+2(PO4)2(OH)2
Strunz: 
8.BB.90
Hardness: 
0.0
Type Locality: 
Sapucaia Mine (Proberil mine), Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Brazil