Mineral

Red Jasper

SiO2 (Microcrystalline Quartz)

Hardness: 6.5-7 on Mohs scale, Color: Red to brownish-red with white or gray veins, Luster: Vitreous to dull, Crystal structure: Trigonal (microcrystalline), Cleavage: None

Hardness: 6

Identified June 18, 2026More mineral →

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Physical properties

Hardness: 6.5-7 on Mohs scale, Color: Red to brownish-red with white or gray veins, Luster: Vitreous to dull, Crystal structure: Trigonal (microcrystalline), Cleavage: None

Formation & geological history

Formed from silica-rich fluids that percolate through rocks, depositing microcrystalline quartz in veins and cavities. The red color is due to iron inclusions. Can form in various environments.

Uses & applications

Used in lapidary arts for cabochons, beads, and carvings. Also popular as a healing stone and for collecting.

Geological facts

Red jasper has been used since antiquity for engraved gems and seals. It was a favorite stone in the ancient world and is referenced in biblical texts.

Field identification & locations

Identify by its solid red color and opacity. Look for subconchoidal fracture and hardness greater than glass. Commonly found worldwide, notably in India, Russia, Brazil, and the USA.