mineral

Peach Moonstone

Feldspar (KAlSi3O8) with inclusions

Hardness: 6-6.5 (Mohs scale), Color: Peach/Tangerine/Pinkish orange, Luster: Vitreous to Pearly, Crystal Structure: Monoclinic, Specific Gravity: 2.56-2.59

Hardness: 6-6

Identified June 30, 2026More mineral →

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Physical properties

Hardness: 6-6.5 (Mohs scale), Color: Peach/Tangerine/Pinkish orange, Luster: Vitreous to Pearly, Crystal Structure: Monoclinic, Specific Gravity: 2.56-2.59

Formation & geological history

Formed in igneous and metamorphic rocks through the crystallization of magma or cooling of plutonic rocks; common in pegmatites. The peach color is often attributed to trace inclusions of goethite or hematite.

Uses & applications

Primarily used in jewelry (cabochons, beads), decorative carvings, and by crystal collectors for aesthetic and metaphysical purposes.

Geological facts

Moonstone belongs to the feldspar group, which makes up about 60% of the Earth's crust. It exhibits an optical phenomenon called adularescence, which creates a soft glow from within.

Field identification & locations

Identified by its pearly sheen and subtle 'shimmer' when rotated under light. Commonly found in India, Sri Lanka, Madagascar, and Tanzania. Use the scratch test against glass to distinguish from plastic mimics.