mineral
Sunstone
Feldspar (Oligoclase)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, typically orange-to-reddish with a characteristic metallic schiller caused by hematite or copper platelets, and a vitreous luster.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, typically orange-to-reddish with a characteristic metallic schiller caused by hematite or copper platelets, and a vitreous luster.
Formation & geological history
Forms in igneous rocks like basalt and granitic pegmatites through the crystallization of mineral-rich melts deep within the Earth's crust.
Uses & applications
Used extensively in jewelry-making for cabochons, beads, and faceted gemstones due to its unique optical aventurescence.
Geological facts
Ancient Norsemen allegedly used sunstone as a navigational compass to locate the sun on cloudy days.
Field identification & locations
Identified by its warm reddish-orange body color and sparkling metallic inclusions; commonly sourced from Oregon, USA, and Norway.
