mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
AI-generated identification · may be incorrectHardness of 5.5 to 6 on the Mohs scale, rich royal blue color often mottled with white calcite veins, vitreous to greasy luster, and a cubic crystal system.
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Physical properties
Hardness of 5.5 to 6 on the Mohs scale, rich royal blue color often mottled with white calcite veins, vitreous to greasy luster, and a cubic crystal system.
Formation & geological history
Forms in sodium-rich igneous rocks like nepheline syenites from cooling magma chambers.
Uses & applications
Used primarily as an ornamental stone, in decorative carvings, and as low-cost gemstone jewelry.
Geological facts
Sodalite is often confused with lapis lazuli, but it lacks lapis's characteristic pyrite flecks and usually has more distinct white veins.
Field identification & locations
Identified by its rich blue color and white streaks; commonly found in Canada, Greenland, and Brazil.
