Peach Moonstone (Feldspar variety)

Physical Properties

Hardness: 6.0 - 6.5 (Mohs scale); Color: Peach, salmon, pinkish-orange; Luster: Vitreous to pearly; Crystal structure: Monoclinic; Cleavage: Two directions at 90 degrees; Specific Gravity: 2.55-2.63.

Formation & Geological History

Formed from crystallizing magma in granitic pegmatites or metamorphic rocks. The 'moonstone' effect (adularescence) is caused by the intergrowth of two types of feldspar that separate as the magma cools, scattering light.

Uses & Applications

Primarily used as a semi-precious gemstone in jewelry (rings, pendants, beads) and as a decorative or metaphysical healing stone for collectors.

Geological Facts

Peach moonstone is known for its mystical 'glow.' In some cultures, it was believed that moonstones were formed from solidified moonbeams. It is the birthstone for June in many traditions.

Field Identification & Locations

Identify by its distinctive peach color and internal shimmery glow when rotated under light. Often found in India, Sri Lanka, Madagascar, and Tanzania. Look for the 'adularescent' flash and 90-degree cleavage planes.

Identified on: 4/24/2026

Mode: Standard