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Tyuyamunite & Native Selenium

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PJM41996

Tyuyamunite & Native Selenium

Ex Dick Thomssen
Radioactive

Description Tabs

Description
Locality: 
Firefly-Pigmay Mine, La Sal, San Juan County, Utah, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 5.5 × 4.2 cm
Description

Bright yellow crystals of tyuyamunite with acicular needles of selenium on partially altered wood in matrix

Mineral Data
What's on the rock

Tyuyamunite

Formula: 
Ca(UO2)2(VO4)2·5-8H2O
Strunz: 
4.HB.25
Hardness: 
1.5 - 2.0
Type Locality: 
Tyuya-Muyun Cu-V-U deposit (Radium Mine), Alai Range (Alay Range), Osh Oblast, Kyrgyzstan

Selenium

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

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