mineral
Sugilite
KNa2(Fe,Mn,Al)2Si12O30
AI-generated identification · may be incorrectHardness of 5.5 to 6.5 on the Mohs scale, vivid magenta to purple color, vitreous to waxy luster, and an orthorhombic crystal system.
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Physical properties
Hardness of 5.5 to 6.5 on the Mohs scale, vivid magenta to purple color, vitreous to waxy luster, and an orthorhombic crystal system.
Formation & geological history
Formed in manganese-rich metamorphic and igneous intrusive environments through metasomatism.
Uses & applications
Used primarily as a gemstone in high-end jewelry and carved ornamental objects.
Geological facts
Also known as lavulite, it was first discovered in 1944 in Japan by Japanese petrologist Ken-ichi Sugi.
Field identification & locations
Identified by its distinct rich purple color and association with manganese deposits; commonly found in South Africa and Japan.
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