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Mineralpedia Details for Tyuyamunite

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Tyuyamunite

Tyuyamunite

Formula
Ca(UO2)2(VO4)2ยท5-8H2
Crystal System
Orthorhombic 
Crystal Habit
Earthy, Scaly, Platy 
Cleavage
Perfect, Distinct, Distinct 
Luster
Adamantine - Pearly 
Color
greenish yellow, yellow 
Streak
light yellow 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
1.5-2 
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Tyuyamunite from Easton B mine, San Miguel Co., Colorado, United States

Tyuyamunite
            from Easton B mine, San Miguel Co., Colorado, United States
Special Info
Radioactive!!

Bright yellow groups of Tyuyamunite over 1mm.

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Tyuyamunite from Big Buck mine, San Juan Co., Utah, United States

Tyuyamunite
            from Big Buck mine, San Juan Co., Utah, United States
Special Info
Radioactive!!

Very rich specimen of bright yellow, earthy, Tyuyamunite. There are no visible single crystals.

Click thumbnail images for larger view.

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