mineral
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8) with inclusions
AI-generated identification · may be incorrectHardness: 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).
- Hardness
- 6–6
- Color
- Soft peach, pinkish-tan, or apricot
- Luster
- Vitreous to pearly
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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.
