mineral
Moonstone
Orthoclase feldspar (KAlSi3O8)
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale, pearly luster, and typically exhibits adularescence in white or creamy tones with monoclinic crystal structure.
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Physical properties
Hardness of 6 on the Mohs scale, pearly luster, and typically exhibits adularescence in white or creamy tones with monoclinic crystal structure.
Formation & geological history
Formed through the cooling of molten rock containing potassium and sodium silicates, predominantly within igneous pegmatites and hydrothermal veins.
Uses & applications
Widely used in cabochon gemstones, jewelry, and metaphysical crystal collections.
Geological facts
Moonstone displays a unique optical phenomenon called adularescence, caused by light scattering between microscopic layers of albite and orthoclase.
Field identification & locations
Identified by its signature floating blue or white shimmer when rotated under a light source; sourced globally from India, Sri Lanka, and Madagascar.
