sedimentary
Green Jasper
Microcrystalline Quartz (SiO2)
AI-generated identification · may be incorrectMohs hardness of 6.5 to 7; earthy to vitreous luster; opaque green color due to iron impurities; conchoidal fracture with no cleavage.
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Physical properties
Mohs hardness of 6.5 to 7; earthy to vitreous luster; opaque green color due to iron impurities; conchoidal fracture with no cleavage.
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or accumulation of silica on ocean floors, often occurring in ancient marine sedimentary environments.
Uses & applications
Used primarily for ornamental carvings, cabochons, polished decorative stones, and gemstone collecting.
Geological facts
Jasper has been utilized since ancient times for talismans, seals, and weaponry. Green varieties are particularly associated with emotional balance and grounding.
Field identification & locations
Identify in the field by its waxy luster, hardness that scratches glass, and microcrystalline texture. Found globally in regions with historical volcanic or hydrothermal activity.
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