gemstone
Sunstone
Plagioclase Feldspar (Sodium Calcium Aluminum Silicate)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, orange to reddish-brown color, vitreous luster, and distinct aventurescence caused by hematite or goethite platelet inclusions.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, orange to reddish-brown color, vitreous luster, and distinct aventurescence caused by hematite or goethite platelet inclusions.
Formation & geological history
Forms within igneous rocks such as basalt and andesite, or metamorphic rocks, through the crystallization of magma or hydrothermal processes over millions of years.
Uses & applications
Widely used in ornamental carvings, polished gemstones, rings, necklaces, and as a collectible specimen.
Geological facts
Sunstone exhibits a unique optical effect called aventurescence, which gives it a shimmering metallic sparkle when viewed from different angles.
Field identification & locations
Easily identified by its characteristic reddish-orange body color and glittering inclusions; primarily found in India, Oregon (USA), Norway, and Russia.
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