gemstone

Polished red-and-white jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored by iron oxides

AI-generated identification · may be incorrect

Typically Mohs 6.5–7; opaque red and white pattern, vitreous to waxy polish, microcrystalline quartz with no visible cleavage. The image shows a rounded, polished specimen; exact identification is uncertain from appearance alone.

Identified October 11, 2026More gemstone →

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Physical properties

Formation & geological history

Jasper forms when silica-rich fluids fill or replace rock, with iron oxides producing red coloration; it occurs in many geological ages and settings.

Uses & applications

Used for cabochons, beads, carvings, and decorative objects; polished pieces are commonly collected.

Geological facts

Jasper’s patterns and colors vary widely, and trade names often describe appearance or locality rather than a distinct mineral species.

Field identification & locations

Look for an opaque, hard stone with a smooth polish and red-and-white mottling; jasper occurs worldwide in silica-rich deposits. A small polished piece like this typically sells for about $3–$20 USD.