sedimentary
Red Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, deep red to brownish-red color, vitreous to dull luster, and microcrystalline crystal structure with conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, deep red to brownish-red color, vitreous to dull luster, and microcrystalline crystal structure with conchoidal fracture.
Formation & geological history
Formed through the silification of sedimentary deposits or volcanic ash, often via hydrothermal fluids rich in iron oxides.
Uses & applications
Commonly used in ornamental carvings, cabochons, jewelry, and lapidary arts.
Geological facts
Its distinct red color comes from high concentrations of iron oxide inclusions trapped within the quartz matrix.
Field identification & locations
Identified by its opaque red color, hardness that scratches glass, and smooth waxy polish; found worldwide in hydrothermal veins and sedimentary beds.
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