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Mineralpedia Details for Pentagonite

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Pentagonite

Pentagonite

Formula
CaV4+OSi4O10ยท4H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Twinning Common, Rosette 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
greenish blue 
Streak
bluish white 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle 
Hardness
3-4 
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Pentagonite from Wagholi, near Pune, Maharashtra, India

Pentagonite
            from Wagholi, near Pune, Maharashtra, India
Special Info
XRD Confirmed

Nice bladed, lath-like crystals to 1mm in basalt vug. Confirmed by XRD.

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