sedimentary

Red Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale), Color: Brick red with brown or black veining, Luster: Vitreous to dull, Crystal Structure: Trigonal/Microcrystalline, Specific Gravity: 2.6-2.9

Hardness: 6

Identified July 3, 2026More sedimentary →

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Brick red with brown or black veining, Luster: Vitreous to dull, Crystal Structure: Trigonal/Microcrystalline, Specific Gravity: 2.6-2.9

Formation & geological history

Formed through the accumulation of silica-rich sediments where original jasper is broken by tectonic activity and then re-cemented by a later silica or hematite flow.

Uses & applications

Primarily used for ornamental purposes, lapidary art, jewelry, and as a popular decorative gemstone in carving and polished geometric shapes like points.

Geological facts

The term 'brecciated' comes from the Italian word 'breccia', meaning 'gravel' or 'broken stones', referring to the angular fragments cemented together within the specimen.

Field identification & locations

Look for sharp, angular red fragments separated by darker veins of hematite or sparkling quartz. It is widely collected globally with significant deposits in Brazil, Australia, and the USA.