mineral

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull/waxy; Structure: Microcrystalline quartz; Specific Gravity: 2.58-2.91

Hardness: 6
Color: Brick red to brownish red
Luster: Dull/waxy

Identified April 15, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull/waxy; Structure: Microcrystalline quartz; Specific Gravity: 2.58-2.91

Formation & geological history

Formed through the accumulation of silica in volcanic or sedimentary environments. The vibrant red color is caused by the presence of iron (hematite) during formation. Most jasper is millions of years old.

Uses & applications

Commonly used for artisanal jewelry (cabochons, beads), decorative carvings, and as a popular stone for tumbling and crystal healing/collecting.

Geological facts

Jasper has been used as a gemstone since antiquity; it was mentioned in the Bible and was highly valued by early civilizations in Mesopotamia and Egypt for seals and talismans.

Field identification & locations

Identify in the field by its opaque nature (it does not transmit light even on thin edges), its smooth conchoidal fracture, and it cannot be scratched by a steel knife. Frequently found in riverbeds and on beaches as water-worn pebbles.

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Mineral/Rock

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