sedimentary

Red Jasper

Red Jasper (Silicon Dioxide - SiO2)

Hardness: 6.5-7 Mohs; Color: Opaque red (due to iron inclusions); Luster: Vitreous to greasy; Crystal Structure: Trigonal (microcrystalline); Cleavage: None (conchoidal fracture); Specific Gravity: 2.58-2.91

Hardness: 6
Color: Opaque red (due to iron inclusions)
Luster: Vitreous to greasy

Identified May 25, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed from the deposition of silica in sedimentary environments or hydrothermal veins. Its red color is derived from high hematite (iron) content. It is typically hundreds of millions of years old.

Uses & applications

Used extensively in jewelry as cabochons and beads, as a decorative stone in mosaics and ornaments, and highly valued in crystal healing and metaphysical collecting.

Geological facts

Red Jasper has been used for millennia; it was frequently used in ancient Egypt for amulets and in Minoan Crete for seals. It is often referred to as the 'Stone of Endurance' and 'The Supreme Nurturer'.

Field identification & locations

Identify by its brick-red color, opacity, and smooth, waxy luster when tumbled. It is found globally with notable deposits in Brazil, USA, South Africa, and India. It will not scratch with a copper penny but will scratch glass.