sedimentary

Red Jasper

Silicon dioxide with iron impurities (SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7 Mohs; Color: Deep Brick Red to Brownish Red; Luster: Vitreous to Waxy; Crystal Structure: Trigonal (Microcrystalline); Cleavage: None (Conchoidal fracture); Specific Gravity: 2.58-2.91

Hardness: 6
Color: Deep Brick Red to Brownish Red
Luster: Vitreous to Waxy

Identified June 11, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed when silica-rich fluids permeate through volcanic ash or sedimentary rocks, with the red color caused by iron inclusions. This specimen appears to be tumbled and polished from its raw form.

Uses & applications

Mainly used in jewelry (cabochons, beads), decorative carvings, and as a popular stone for collectors and metaphysical practices. Historically used for seals and amulets.

Geological facts

Red Jasper has been known as the 'stone of endurance' throughout history. Ancient Egyptians associated it with the blood of Isis, and it was used extensively in signet rings and ornamentation in ancient Greece and Rome.

Field identification & locations

Identify by its solid red color, lack of transparency (it is opaque), and high hardness (it cannot be scratched by a steel knife). It is commonly found in India, Brazil, Madagascar, and the USA.