Peridot
Peridot is the gem-quality variety of olivine, a magnesium-iron silicate ([Mg,Fe]₂SiO₄) forming a solid-solution series between forsterite and fayalite. Prized for its signature bright lime-to-olive green color — with no need for treatment or enhancement — peridot forms deep in the Earth's mantle and reaches the surface through volcanic eruptions, tectonic uplift, or even arrives via pallasite meteorites carrying olivine crystals in a metallic matrix.
The ancient type locality is Zabargad Island in Egypt's Red Sea, mined since antiquity and famed for large, gemmy yellowish-green crystals that supplied virtually all historic European peridot. Today's finest material comes from Sapat Gali in Pakistan's Kaghan Valley, celebrated for intensely colored, doubly-terminated crystals of exceptional clarity, and from Mogok, Myanmar. In the United States, the San Carlos Apache Reservation in Arizona is the largest peridot source in the Western Hemisphere, while Kilbourne Hole, New Mexico, yields peridot-bearing basalt nodules popular with collectors.
Collectors seek peridot for its rarity in large, transparent, well-formed crystals — true gem-grade specimens are surprisingly uncommon compared to other classic species. Fine peridot combines historical significance, striking color saturation, and diverse worldwide localities, making it a cornerstone species for both gemological and mineralogical collections.
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Product type
Minerals collector specimens · Masterpiece our finest pieces · Decorative minerals · Crystal healing
Origin
Continent, country or Italian region where the specimen was found.
Special features
TOP, Aesthetic, Radioactive, Fluorescent, Phosphorescent, Pseudomorphosis, Rare, Rare locality, New find, Systematic, Topographic, Historic.
Shape
Crystal, Crystal cluster, Crystals on matrix, Geode, Massive, Free form, Polished, Slice, Mineral lot.
Color
The main colour of the specimen, from black to transparent.
Size
Micromount 0–1 cm · Thumbnail 1–5 · Small cabinet 5–8 · Medium cabinet 8–15 · Large cabinet 15–25 · Museum 25+ cm.
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