mineral
Red Jasper
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, opaque luster, red to reddish-brown color, trigonal crystal system with microcrystalline structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, opaque luster, red to reddish-brown color, trigonal crystal system with microcrystalline structure.
Formation & geological history
Formed from silica-rich hydrothermal solutions or silica deposition in marine environments, often associated with volcanic activity and ancient ocean beds.
Uses & applications
Used primarily in lapidary work, ornamental carvings, polished cabochons for jewelry, and as a decorative stone.
Geological facts
Red Jasper has been used since antiquity for talismans and seals, valued for its rich iron-oxide derived color and durability.
Field identification & locations
Easily identified by its deep red color, conchoidal fracture, and inability to be scratched by steel. Found globally in alluvial deposits and hydrothermal veins.
