mineral
Sodalite
Sodium aluminum silicate chloride, Na8Al6Si6O24Cl2
AI-generated identification · may be incorrectHardness of 5.5 to 6 on the Mohs scale, royal blue color often mottled with white calcite veins, vitreous to greasy luster, and cubic crystal system.
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Physical properties
Hardness of 5.5 to 6 on the Mohs scale, royal blue color often mottled with white calcite veins, vitreous to greasy luster, and cubic crystal system.
Formation & geological history
Forms primarily in silica-poor igneous rocks like nepheline syenites from cooling magma rich in sodium and chlorine.
Uses & applications
Used primarily as an ornamental stone, in jewelry, for carvings, and as a collector mineral specimen.
Geological facts
Sodalite is the main mineral component of the ornamental lapis lazuli stone and fluoresces orange-pink under ultraviolet light.
Field identification & locations
Identified by its rich blue color and white veins; commonly found in Canada, Brazil, Namibia, and the United States.
