mineral

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Hardness: 6.5-7 on Mohs scale; Color: Brick red to deep brownish-red with dark iron-rich veins/mottling; Luster: Vitreous to waxy when polished; Crystal structure: Trigonal (microcrystalline quartz); Cleavage: None (conchoidal fracture); Specific Gravity: ~2.6

Hardness: 6
Luster: Vitreous to waxy when polished

Identified July 22, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydrothermal precipitation or sedimentary silica deposition where fine-grained microcrystalline quartz intermixes with iron oxides (hematite), giving it a rich red coloration. Found in volcanic and sedimentary environments across various geological ages.

Uses & applications

Widely used as an ornamental gemstone, for cabochons, beads, carvings, tumbled stones, and jewelry pendants. Historically used for seals and amulets.

Geological facts

Red jasper has been utilized for thousands of years, revered by ancient Egyptians, Greeks, and Norse cultures as a stone of protection and physical endurance. Its deep red color is caused by finely disseminated iron inclusions.

Field identification & locations

Identified by its opaque, rich red color, high hardness (will scratch glass), and lack of cleavage. Highly common in eastern Australia (including New South Wales and Queensland), making it consistent with the provided location.

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