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Mineralpedia Details for Ferrowyllieite

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Ferrowyllieite

Ferrowyllieite

Formula
Na2Fe2+2Al(PO4)3 
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Selvage 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Metallic 
Color
bluish green, greenish black, gray green, dark blue green 
Streak
gray green 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
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Mindat
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Ferrowyllieite from Victory mine, Custer Co., South Dakota, United States

Ferrowyllieite
            from Victory mine, Custer Co., South Dakota, United States
Special Info
Type Locality

Black to dark green crystalline Ferrowyllieite from this dufunct mine.

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