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Native Selenium & Fluorwavellite

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UVM865244

Native Selenium & Fluorwavellite

Classic Locality

Description Tabs

Description
Locality: 
Willard Mine, Pershing County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.2 × 2.1 cm
Description

An excellent thumbnail specimen of native selenium on fluorwavellite.   The selenium forms minute metallic needles nicely contasted by matrix, and also freestanding on matrix.  

Mineral Data
What's on the rock

Selenium

Formula: 
Se
Strunz: 
1.CC.10
Crystal System: 
Trigonal
Hardness: 
2.0
Streak: 
red

Fluorwavellite

Formula: 
Al3(PO4)2(OH)2F·5H2O
Strunz: 
8.DC.50
Crystal System: 
Orthorhombic
Hardness: 
3½ - 4
Colour: 
Green to yellowish-green and yellow
Streak: 
White
Type Locality: 
Silver Coin Mine, Valmy, Iron Point District, Humboldt Co., Nevada, USA Or Wood Mine, Del Rio, Del Rio District, Cocke Co., Tennessee, USA

Seller Information

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