Peach Moonstone

Physical Properties

Hardness: 6–6.5 (Mohs scale); Color: Soft peach, pinkish-tan, or apricot; Luster: Vitreous to pearly; Crystal structure: Monoclinic; Cleavage: Perfect in two directions; Specific gravity: 2.5–2.6; Exhibits adularescence (a ghostly glow beneath the surface).

Formation & Geological History

Formed from cooling magma in deep-seated igneous environments, such as pegmatites. The characteristic 'glow' is caused by the intergrowth of two types of feldspar (orthoclase and albite) that separate as the mineral cools.

Uses & Applications

Primarily used in jewelry (cabochons, beads, rings), ornamental carvings, and as a popular metaphysical or spiritual healing stone among collectors.

Geological Facts

Moonstone was used in Roman jewelry for nearly 2,000 years, and it was a favorite of Art Nouveau jewelers like René Lalique. Peach moonstone is specifically associated with the 'divine feminine' in gemstone lore.

Field Identification & Locations

Identify by its characteristic internal glow (adularescence) that seems to move when the stone is tilted. It has a pearly sheen that distinguishes it from quartz. Commonly found in India, Madagascar, Sri Lanka, and Myanmar.

Identified on: 4/27/2026

Mode: Standard