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Mineralpedia Details for Roedderite

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Roedderite

Roedderite

Formula
KNaMg2(Mg3Si12)O30 
Crystal System
Hexagonal 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
blue green, colorless, yellow, reddish brown 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Hardness
5-6 
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Roedderite from Satsuma-Ioujima, Mishima, Kagoshima, Japan

Roedderite
            from Satsuma-Ioujima, Mishima,
 Kagoshima, Japan

Blue anhedral crystals in grainy matrix.

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