mineral

Red Jasper

Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)

AI-generated identification · may be incorrect

Hardness: 6.5-7 on Mohs scale; Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline/Trigonal; Cleavage: None; Specific Gravity: 2.58-2.91

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

Identified June 29, 2026More mineral →

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Physical properties

Hardness: 6.5-7 on Mohs scale; Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline/Trigonal; Cleavage: None; Specific Gravity: 2.58-2.91

Formation & geological history

Formed when silica-rich fluids permeate through volcanic or sedimentary rock, often acquiring its red color from iron oxide (hematite) inclusions during the solidification process.

Uses & applications

Commonly used in jewelry for cabochons and beads, as an ornamental stone in scuptures, and in lapidary arts. Also valued in holistic practices.

Geological facts

Red Jasper is known as a 'stone of endurance' and has been used since ancient times in amulets and cylinders for official seals in Mesopotamia.

Field identification & locations

Identify by its deep red color, opaque transparency, and smooth, waxy feel when polished. Commonly found in riverbeds or coastal areas as water-worn pebbles.