gemstone
Chrysoprase
Silicon Dioxide, SiO2 (Chalcedony variety)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vibrant apple-green to dark green color, waxy to vitreous luster, and microcrystalline trigonal structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vibrant apple-green to dark green color, waxy to vitreous luster, and microcrystalline trigonal structure.
Formation & geological history
Formed in hydrothermal veins or weathered nickel-bearing serpentine rocks through the deposition of silica-rich groundwater.
Uses & applications
Widely used in high-end jewelry, decorative carvings, and as a sought-after collector gemstone.
Geological facts
Its distinct green coloration is caused by trace amounts of finely dispersed nickel rather than chromium or vanadium.
Field identification & locations
Identified by its signature apple-green color and conchoidal fracture; commonly found in Australia, Germany, Poland, and Brazil.
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