mineral

Polished picture jasper (likely)

Silica-rich microcrystalline quartz, SiO₂, with iron-oxide and other mineral inclusions

AI-generated identification · may be incorrect

Opaque, cream-white polished pebble with brown and dark-green patterned inclusions; quartz hardness about 6.5–7 Mohs, vitreous to waxy luster, microcrystalline structure, and no visible cleavage. Exact identification is uncertain from the image alone.

Identified October 15, 2026More mineral →

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Physical properties

Formation & geological history

Jasper forms when silica-rich fluids fill or replace rock, with impurities creating colored patterns; formation ages vary widely by deposit. This appears to be a cut and polished natural specimen.

Uses & applications

Used for cabochons, beads, ornaments, and lapidary collections; generally decorative rather than industrial.

Geological facts

Jasper’s patterns arise from mineral impurities and can resemble landscapes or figures; “picture jasper” is a descriptive trade name, not a precise mineral species.

Field identification & locations

Look for opaque silica, smooth polish, and patterned rather than crystalline surfaces; similar jasper occurs in many regions, including the western United States. A small tumbled piece like this commonly sells for about $2–$15 USD.