mineral

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

Hardness: 6.5-7 (Mohs), Color: Opaque brick red, Luster: Dull to vitreous, Crystal structure: Trigonal (microcrystalline), Cleavage: None (conchoidal fracture), Specific Gravity: 2.58-2.91

Hardness: 6

Identified April 7, 2026More mineral →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6.5-7 (Mohs), Color: Opaque brick red, Luster: Dull to vitreous, Crystal structure: Trigonal (microcrystalline), Cleavage: None (conchoidal fracture), Specific Gravity: 2.58-2.91

Formation & geological history

Formed in sedimentary or hydrothermal environments where silica-rich fluids permeate cracks or replace organic material; the red color is caused by fine inclusions of iron oxide (hematite).

Uses & applications

Used extensively in jewelry (cabochons, beads), decorative lapidary arts, and as a popular stone for mineral collectors and metaphysical practitioners.

Geological facts

Red Jasper is known as the 'Stone of Endurance' and has been used since ancient times for amulets and carvings. It is a dense, opaque variety of chalcedony.

Field identification & locations

Identified by its distinctive deep red color, high hardness (cannot be scratched by steel), and smooth conchoidal fracture. Common in locations like the western USA, Brazil, South Africa, and India.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral