$75Median
7Sold (12 mo)
$75Last sale
Moonstone specimens for sale
58 for sale · $100–$6,000 USD
12 in the gallery
Moonstone is a variety of the mineral feldspar that displays a soft, pearly blue sheen known as adularescence. The mineral group is composed of layered potassium aluminum silicates, and Moonstone typically forms in crystal aggregates with a pearly luster that can range from colorless to pale blue or peach, depending on the dominant trace elements and internal structure. Specimens are commonly found as well-formed, tabular crystals or thin, platy aggregates, and the moonlike glow is most vivid when light refracts within the micro-structural layers.
- Formula
- KAlSi3O8
- Rarity
- Common
- Stability
- Stable
- Collector interest
- High Interest
- Classification notes
- Silicate; tectosilicate; framework silicate; feldspar group (orthoclase)
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View all 58Where Moonstone is found
About Moonstone
Notable Moonstone discoveries come from diverse locales such as Mexico, Myanmar, and Norway, where the mineral occurs in igneous and metamorphic settings and in alluvial gravels. Collectors prize Moonstone for its unique interplay of color and sheen, as well as the challenge of locating well-formed crystals with strong adularescence. Its relatively soft hardness and perfect cleavage require careful handling, but the ethereal glow remains a compelling feature for display and study.
