mineral
Sunstone
Feldspar group (Plagioclase/Orthoclase, NaAlSi3O8 to CaAl2Si2O8)
AI-generated identification · may be incorrectHardness of 6-6.5 on the Mohs scale, colors ranging from orange and red to yellow and brown, with a characteristic metallic glitter (aventurescence) caused by hematite or copper inclusions. Triclinic or monoclinic crystal system with vitreous luster.
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Physical properties
Hardness of 6-6.5 on the Mohs scale, colors ranging from orange and red to yellow and brown, with a characteristic metallic glitter (aventurescence) caused by hematite or copper inclusions. Triclinic or monoclinic crystal system with vitreous luster.
Formation & geological history
Forms in igneous rocks like basalts and granites, as well as metamorphic rocks, through the cooling of magma or hydrothermal processes over millions of years.
Uses & applications
Widely used in high-end jewelry, carvings, and as a popular collector mineral due to its unique optical schiller effect.
Geological facts
The metallic sheen, known as aventurescence, is caused by tiny microscopic plate-like inclusions of copper or hematite reflecting light.
Field identification & locations
Easily identified by its warm peach-orange color and distinct sparkly glitter when rotated in sunlight. Found in India, Norway, Oregon (USA), and Madagascar.
