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Delhayelite

#56404
SOLD
Delhayelite from Mt. Rasvumchorr, Khibiny Massif, Kola Peninsula, Russia - 56404
Delhayelite from Mt. Rasvumchorr, Khibiny Massif, Kola Peninsula, Russia - 56404

Delhayelite

#56404
Availability
Sold
Size
3 x 3 x 1.5 cm - Thumbnail 
Formula
K7Na3Ca5Al2Si14O38F4Cl2 (RRUFF)
Locality
Mt. Rasvumchorr, Khibiny Massif, Kola Peninsula, Russia

Platy, long, blades of silvery crystals to 1cm. It is a fairly rare mineral.

Delhayelite

Formula
K7Na3Ca5Al2Si14O38F4Cl2 
Crystal System
Orthorhombic 
Crystal Habit
Platy 
Cleavage
Distinct, None, None 
Color
colorless, greenish gray, light gray green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
4-5 

Data courtesy of Webmineral.

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