sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness of 6.5-7 on Mohs scale, opaque green color with banding or mottling, vitreous to dull luster, cryptocrystalline structure, conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on Mohs scale, opaque green color with banding or mottling, vitreous to dull luster, cryptocrystalline structure, conchoidal fracture.
Formation & geological history
Forms from silica-rich fluids precipitating in sedimentary environments or hydrothermal veins over millions of years.
Uses & applications
Used primarily for making cabochons, beads, ornamental carvings, and as a collector specimen.
Geological facts
Green jasper has been valued since ancient times for talismans and seals, often associated with vitality and nature.
Field identification & locations
Identified by its microcrystalline structure, hardness, waxy luster, and lack of cleavage; found globally in alluvial deposits and riverbeds.
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