Red Jasper

Silicon Dioxide (SiO2) with Iron inclusions

Rock Type: sedimentary

Red Jasper

Physical Properties

Hardness: 6.5-7 (Mohs); Color: Brick red to brownish-red; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None; Specific gravity: 2.58-2.91

Formation & Geological History

Formed through the deposition of silica in cavities and fractures of sedimentary or volcanic rocks. The red color is caused by the presence of iron oxide (hematite) during the mineralization process. Can occur in rocks of nearly any geological age.

Uses & Applications

Commonly used for lapidary work, jewelry (beads, cabochons), carvings, and energetic healing practices. Occasionally used for small ornamental accents in construction.

Geological Facts

Jasper was a favorite gem in the ancient world; its name can be traced back in Arabic, Persian, Greek, and Latin. It is often referred to as a 'stone of endurance' or 'nurturer's stone' in metaphysical lore.

Field Identification & Locations

Identify by its opaque nature (it does not transmit light even at the edges), its deep red color, and lack of cleavage (conchoidal fracture). It is widely found in India, Brazil, USA, and South Africa.

Identified on: 5/1/2026

Mode: Standard