Peach Moonstone (Orange/Peach Feldspar)

Physical Properties

Hardness: 6-6.5 on Mohs scale; Color: Pinkish-orange, peach, or light tan; Luster: Pearly to sub-vitreous; Crystal Structure: Monoclinic; Cleavage: Two directions at 90 degrees; Specific Gravity: 2.56-2.59.

Formation & Geological History

Formed in igneous or metamorphic environments through the cooling of magma. The characteristic 'glow' or sheen is due to alternating layers of orthoclase and albite feldspar that scatter light.

Uses & Applications

Predominantly used as a gemstone in jewelry (cabochons and beads) and highly valued in the metaphysical and crystal collecting communities.

Geological Facts

Natural moonstone exhibits a phenomenon called adularescence, which creates a soft glow from within the stone. Peach varieties are often associated with emotional soothing in folklore.

Field Identification & Locations

Identify in the field by its distinct pearly sheen and hardness (it can scratch glass but is softer than quartz). Commonly found in Sri Lanka, India, and Tanzania. Collectors should look for a uniform peach color and a smooth surface without deep cracks.

Identified on: 4/13/2026

Mode: Standard