mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Hardness: 6.5-7 (Mohs scale), Color: Reddish-brown, Luster: Vitreous to dull, Crystal Structure: Hexagonal (Trigonal), Cleavage: None, Fracture: Conchoidal

Hardness: 6

Identified June 19, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Reddish-brown, Luster: Vitreous to dull, Crystal Structure: Hexagonal (Trigonal), Cleavage: None, Fracture: Conchoidal

Formation & geological history

Formed through the accumulation of silica in volcanic or sedimentary environments, where iron oxide (hematite) provides the red color. Typically ancient, ranging from millions to billions of years old.

Uses & applications

Used extensively in jewelry as cabochons, beads, and carvings. Also used as an ornamental stone and for metaphysical/collecting purposes.

Geological facts

The name 'Jasper' is derived from the Greek word 'iaspis', meaning spotted stone. It is a variety of chalcedony that is opaque due to high mineral impurities.

Field identification & locations

Identify by its smooth texture when wet, high hardness (cannot be scratched by a steel knife), and deep brick-red color. Commonly found in riverbeds, beaches, and desert plains globally.

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Schist

Metamorphic

Epidote

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metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral