mineral

Red Jasper Cube

SiO2 (microcrystalline quartz)

Hardness: 6.5-7 on Mohs scale. Color: Brick red to brownish-red. Luster: Vitreous to dull. Crystal structure: Trigonal (microcrystalline). Opaque.

Hardness: 6
Color: Brick red to brownish-red
Luster: Vitreous to dull

Identified July 30, 2026More mineral →

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Physical properties

Hardness: 6.5-7 on Mohs scale. Color: Brick red to brownish-red. Luster: Vitreous to dull. Crystal structure: Trigonal (microcrystalline). Opaque.

Formation & geological history

Forms when silica-rich fluids permeate porous rocks or volcanic ash, with the red color coming from iron oxide (hematite) inclusions.

Uses & applications

Used for carving, lapidary arts, jewelry making, and as a collector's item or decorative object.

Geological facts

Jasper was favored in the ancient world for making seals, amulets, and decorative items. The name comes from an old French word meaning 'spotted or speckled stone'.

Field identification & locations

Identified by its deep red color, opacity, hardness (scratches glass), and conchoidal fracture. Often found worldwide, notably in the USA, India, Russia, and Madagascar.