mineral

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide impurities

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: Brick red to brownish-red; Luster: Dull to vitreous; Crystal Structure: Hexagonal (Microcrystalline); Cleavage: None; Fracture: Conchoidal; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Brick red to brownish-red
Luster: Dull to vitreous

Identified July 19, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the infiltration of silica-rich hydrothermal fluids into volcanic rock or sedimentary beds where iron oxides provide the deep red pigment. It is a variety of microcrystalline quartz.

Uses & applications

Commonly used as a gemstone for jewelry, carvings, ornaments, and decorative items. In many cultures, it is used as a healing stone.

Geological facts

Red Jasper has been used for centuries and was favored in ancient Egypt for amulets. It is often referred to as the 'Stone of Endurance' due to its toughness.

Field identification & locations

Identified by its distinctive opaque red color, dull luster when raw, and inability to be scratched by a steel knife. Frequently found in stream beds or as rounded pebbles on beaches.