sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with impurities

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Variegated spotting or banding in orange, red, brown, and grey; Luster: Vitreous to waxy (when polished); Structure: Cryptocrystalline; Specific Gravity: 2.6-2.9

Hardness: 6
Luster: Vitreous to waxy (when polished)

Identified July 13, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Variegated spotting or banding in orange, red, brown, and grey; Luster: Vitreous to waxy (when polished); Structure: Cryptocrystalline; Specific Gravity: 2.6-2.9

Formation & geological history

Formed from the hydrothermal deposition of silica and impurities in volcanic ash and rhyolite flows. The orbicular and banded patterns develop as silica spheres or rhythmic layering occurs during crystallization.

Uses & applications

Primarily used for decorative items, jewelry (cabochons, beads), metaphysical healing stones, and collector specimens.

Geological facts

Despite being called jasper, it is often technically a type of rhyolite. The name comes from the distinct spotted patterns that resemble the fur of a leopard.

Field identification & locations

Identify by its unique 'orbicular' circular patterns and warm earth-tone colors. It is most famously sourced from Jalisco, Mexico. Collectors should look for high-contrast patterns and a smooth finish.