Rock Identifier
Red Jasper (Silicon Dioxide (SiO2)) — sedimentary
sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline trigonal; Cleavage: None; Specific Gravity: 2.58-2.91

Hardness
6
Color
Brick red to brownish red
Luster
Dull to vitreous
Identified More sedimentary

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline trigonal; Cleavage: None; Specific Gravity: 2.58-2.91

Formation & geological history

Formed from the deposition of silica-rich micro-organisms or hydrothermal fluids in sedimentary environments. Its red color comes from iron inclusions (hematite).

Uses & applications

Used frequently in jewelry (beads, cabochons), ornamental carvings, and as a healing stone in metaphysical communities.

Geological facts

Red Jasper was known as a stone of endurance and protection in ancient cultures, often used by ancient Egyptians in amulets to enhance virility.

Field identification & locations

Identify by its deep red color, high hardness (cannot be scratched by a steel knife), and smooth, waxy feel when polished. Commonly found in riverbeds and desert environments globally.