mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Hardness: 6.5-7 (Mohs scale); Color: Brick red to deep orange-red; Luster: Vitreous to dull; Crystal Structure: Hexagonal (cryptocrystalline); Cleavage: None, conchoidal fracture; Specific gravity: 2.58-2.91

Hardness: 6
Color: Brick red to deep orange-red
Luster: Vitreous to dull

Identified March 23, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich fluids in volcanic rock cavities or sedimentary environments, acquiring its red hue from the oxidation of iron (hematite) during the formation process.

Uses & applications

Commonly used for lapidary work, jewelry (cabochons), interior decoration, and as a metaphysical grounding stone.

Geological facts

Historically known as the 'Stone of Endurance,' Red Jasper was used in antiquity for amulets and seals. It is a variety of chalcedony that contains up to 20% foreign materials which determine its opacity and color.

Field identification & locations

Identify in the field by its deep red color, characteristic conchoidal fracture, and inability to be scratched by a steel knife. Common locations include India, Brazil, Egypt, and the Southwestern United States.

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