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Mineralpedia Details for Trolleite

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Trolleite

Trolleite

Formula
Al4(PO4)3(OH)3 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
light blue, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal - Uneven 
Hardness
5.5-6 
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Trolleite from Champion mine, Mono Co., California, United States

Trolleite
            from Champion mine, Mono Co., California, United States

Crude blue crystals of Trolleite rimmed by darker blue Lazulite suspended in feldspar matrix. 

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