mineral
Sodalite
Na8Al6Si6O24Cl2
AI-generated identification · may be incorrectHardness of 5.5 to 6 on the Mohs scale, vibrant royal blue with white calcite veins, vitreous to greasy luster, isometric crystal system.
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Physical properties
Hardness of 5.5 to 6 on the Mohs scale, vibrant royal blue with white calcite veins, vitreous to greasy luster, isometric crystal system.
Formation & geological history
Forms in sodium-rich igneous rocks from cooling magmas that are low in silica.
Uses & applications
Primarily used as an ornamental stone, carved into decorative objects, and fashioned into cabochons for jewelry.
Geological facts
Sodalite is the main mineral component of lapis lazuli and fluoresces a bright orange-red under ultraviolet light.
Field identification & locations
Easily identified by its rich blue color combined with white patches of calcite, commonly found in Canada, Greenland, and Brazil.
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