sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with impurities

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Variegated greens, reds, browns, and ochre; Luster: Vitreous to dull; Crystal structure: Hexagonal (cryptocrystalline); Cleavage: None; Fracture: Conchoidal.

Hardness: 6
Color: Variegated greens, reds, browns, and ochre
Luster: Vitreous to dull

Identified July 15, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Variegated greens, reds, browns, and ochre; Luster: Vitreous to dull; Crystal structure: Hexagonal (cryptocrystalline); Cleavage: None; Fracture: Conchoidal.

Formation & geological history

Formed through the infiltration of silica-rich fluids into sedimentary rock or volcanic ash, combined with iron oxides and other minerals that provide the colors. Found in various geological ages often in hydrothermal veins.

Uses & applications

Primarily used for lapidary work, jewelry (beads, cabochons), carvings, and ornamental objects. Also popular in the metaphysical community for 'grounding'.

Geological facts

Jasper is an opaque variety of chalcedony. The name 'Fancy Jasper' refers to the multi-colored variety containing a festive mix of green, purple, and mauve tones. It has been used for seals and jewelry for thousands of years.

Field identification & locations

Identified by its waxy luster, variety of colors in a single stone, and its high hardness (won't be scratched by a steel blade). Commonly found in India, Brazil, and South Africa.