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Mineral Properties and Uses

Physical Properties of Sodalite

Chemical Classification silicate
Color blue, white, gray, green, colorless, yellow, red
Streak white, blue
Luster vitreous
Diaphaneity transparent to translucent
Cleavage none
Mohs Hardness 5.5 to 6
Specific Gravity 2.2 to 2.3
Diagnostic Properties color
Chemical Composition Na8(Al6Si6O24)Cl2
Crystal System isometric
Uses dimension stone, decorative purposes, ornamental material

Sodalite close up
A close-up of the sodalite from Ice River, British Columbia, Canada. Overall specimen is approximately 3 inches (7.6 centimeters) across.

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Sodalite from Ice River, British Columbia, Canada. Specimen is approximately 3 inches (7.6 centimeters) across.

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