gemstone
Sunstone
Feldspar group (Plagioclase / Oligoclase)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, reddish-orange body color with a characteristic metallic glitter or schiller effect caused by tiny copper platelets, vitreous luster, and triclinic crystal system.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, reddish-orange body color with a characteristic metallic glitter or schiller effect caused by tiny copper platelets, vitreous luster, and triclinic crystal system.
Formation & geological history
Formed within igneous rocks like basalt and granitic pegmatites, as well as metamorphic rocks, through cooling magma or hydrothermal activity over millions of years.
Uses & applications
Widely used in high-end jewelry, cabochons, carved ornaments, and collected by mineral enthusiasts.
Geological facts
The metallic shimmer, known as aventurescence, is primarily caused by microscopic inclusions of native copper reflecting light.
Field identification & locations
Identified by its distinct warm orange-to-red color and signature metallic sparkle; commonly sourced from Oregon, USA, India, and Norway.
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