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Mineralpedia Details for Giniite

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Giniite

Giniite

Formula
Fe2+Fe3+4(PO4)4(OH)2ยท2H2
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine 
Cleavage
None, None, None 
Luster
Vitreous - Greasy 
Color
blackish brown, black, blackish green 
Streak
olive green 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3-4 
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