sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Deep opaque red; Luster: Vitreous to waxy; Crystal structure: Hexagonal (Trigonal, microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Deep opaque red
Luster: Vitreous to waxy

Identified June 22, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs scale); Color: Deep opaque red; Luster: Vitreous to waxy; Crystal structure: Hexagonal (Trigonal, microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.91

Formation & geological history

Formed when microcrystalline quartz precipitates from silica-rich fluids in hydrothermal veins or sedimentary environments. Its red color is derived from high iron (hematite) content.

Uses & applications

Commonly used for lapidary work, jewelry (beads and cabochons), decorative carvings, and as a popular stone for collectors and metaphysical practices.

Geological facts

Red Jasper was known as the 'mother of all stones' in ancient cultures and was frequently used for amulets and seals in ancient Egypt and Mesopotamia.

Field identification & locations

Identified by its opaque appearance and brick-red color. It will scratch glass but cannot be scratched by a steel knife. Commonly found in riverbeds or near volcanic regions.