mineral
Sodalite
Na8Al6Si6O24Cl2
AI-generated identification · may be incorrectHardness 5.5 to 6 on the Mohs scale, royal blue color often mottled with white calcite veins, vitreous to greasy luster, and isometric crystal system.
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Physical properties
Hardness 5.5 to 6 on the Mohs scale, royal blue color often mottled with white calcite veins, vitreous to greasy luster, and isometric 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 gemstone, for carved decorative objects, and in crystal collections.
Geological facts
Sodalite turns bright orange-red under ultraviolet light due to tenebrescence properties in some varieties.
Field identification & locations
Identified by its distinctive royal blue color combined with white patches; commonly found in Canada, Greenland, and Brazil.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous