Leopard Skin Jasper

Physical Properties

Hardness: 6.5-7 (Mohs scale); Color: Pinkish-orange, cream, and brown mottled with black orbicular spots; Luster: Vitreous to waxy; Structure: Microcrystalline quartz; Cleavage: None (conchoidal fracture).

Formation & Geological History

Formed from silica-rich precipitates in volcanic or sedimentary environments where minerals like iron and manganese create orbicular patterns during deposition and lithification.

Uses & Applications

Used primarily for lapidary work, jewelry (cabs, beads), carved ornaments, and as a popular specimen for rock collectors.

Geological Facts

Despite its name, it is technically an orbicular rhiolitic jasper. It is known for its distinctive spots that mimic the coat of a leopard and is one of the most recognizable varieties of jasper.

Field Identification & Locations

Identify by its opaque base color and nearly circular, irregular black or dark brown spots. Commonly found in Mexico (Chihuahua) and Brazil. Collectors look for high-contrast patterns and lack of surface pitting.

Identified on: 4/13/2026

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