sedimentary

Red Jasper

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Hardness: 6.5 to 7 on the Mohs scale; Color: Red, brownish-red due to iron; Luster: Vitreous to dull; Crystal Structure: Trigonal (microcrystalline/cryptocrystalline); Cleavage: None (exhibits conchoidal fracture); Specific Gravity: 2.58 to 2.91

Hardness: 6
Color: Red, brownish-red due to iron
Luster: Vitreous to dull

Identified August 4, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed through the chemical precipitation of silica-rich fluids in marine or terrestrial environments, often in association with volcanic activity or hydrothermal processes, subsequently colored by iron oxide during diagenesis.

Uses & applications

Used primarily in lapidary arts, making ornamental carvings, beads, cabochons for jewelry, and as a collectible mineral specimen.

Geological facts

Jasper has been used since ancient times for talismans, seals, and weaponry. Red jasper is specifically mentioned in ancient texts as a stone of endurance and grounding.

Field identification & locations

Found worldwide in sedimentary deposits and riverbeds. Can be identified in the field by its distinctive red color, opaque nature, conchoidal fracture, and hardness that scratches glass.

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