sedimentary

Fancy Jasper

Chalcedony (SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7.0 (Mohs scale); Color: Mottled green, red, brown, and grey; Luster: Vitreous to waxy (when polished); Crystal Structure: Microcrystalline; Cleavage: None; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Mottled green, red, brown, and grey
Luster: Vitreous to waxy (when polished)

Identified July 6, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7.0 (Mohs scale); Color: Mottled green, red, brown, and grey; Luster: Vitreous to waxy (when polished); Crystal Structure: Microcrystalline; Cleavage: None; Specific Gravity: 2.58-2.91

Formation & geological history

Formed through the deposition of silica from groundwater in sedimentary environments, often associated with iron oxide inclusions that create the various colors. Its age can vary from millions to hundreds of millions of years depending on the deposit site.

Uses & applications

Used primarily in jewelry making for cabochons and beads, as well as decorative figurines, tumbled stones, and as a healing stone in metaphysical practices.

Geological facts

Fancy Jasper is often called the 'Stone of Tranquility.' Unlike typical solid-colored jaspers, 'fancy' varieties are prized for their mix of multiple colors appearing together in a single stone.

Field identification & locations

Identify in the field by its opaque nature, smooth conchoidal fracture, and diverse earthy colors. It is commonly found in India, Brazil, and parts of the United States. Collectors look for high contrast between colors.