mineral

Red jasper (likely tumbled or polished)

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

AI-generated identification · may be incorrect

Opaque, vivid red, with a smooth polished surface and waxy-to-vitreous luster; quartz crystal structure, no visible cleavage, Mohs hardness about 6.5–7, specific gravity about 2.6.

Identified September 22, 2026More mineral →

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Physical properties

Opaque, vivid red, with a smooth polished surface and waxy-to-vitreous luster; quartz crystal structure, no visible cleavage, Mohs hardness about 6.5–7, specific gravity about 2.6.

Formation & geological history

Forms as iron-rich silica fills cavities or replaces rock, commonly in volcanic or sedimentary settings; individual deposits vary widely in age.

Uses & applications

Used for beads, cabochons, carvings, and decorative objects; also collected as a polished stone.

Geological facts

Jasper is a form of chalcedony whose iron-bearing impurities create its red color.

Field identification & locations

The image shows a small, rounded, uniformly red polished piece, consistent with jasper; hardness and a white streak can help distinguish it from softer red materials. Jasper occurs worldwide, including India, Brazil, Australia, and the western United States.