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Geosciences LibreTexts

16.63: Sodalite

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Sodalite
Chemical composition Sodium aluminum silicate
Crystal system Cubic
Habit Massive
Cleavage Distinct, dodecahedral
Fracture Conchoidal to uneven
Hardness 5.5-6.0
Refractive index 1.478-1.488
Birefringence None
Specific gravity 2.27
Lustre Vitreous to greasy

16.63: Sodalite is shared under a CC BY-NC-SA license and was authored, remixed, and/or curated by LibreTexts.

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