gemstone
Chrysoprase
Chalcedony (SiO2)
AI-generated identification · may be incorrectHardness 6.5-7 on Mohs scale, apple-green color due to nickel, waxy to vitreous luster, microcrystalline quartz structure.
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Physical properties
Hardness 6.5-7 on Mohs scale, apple-green color due to nickel, waxy to vitreous luster, microcrystalline quartz structure.
Formation & geological history
Forms in hydrothermal veins or weathered nickel-bearing serpentinites, often found in Australia, Brazil, and Germany.
Uses & applications
Used primarily in high-end jewelry, carvings, and as a popular collectible gemstone.
Geological facts
Chrysoprase was prized by the ancient Greeks and Romans for intaglio engravings and jewelry.
Field identification & locations
Identify by its distinctive bright apple-green color and conchoidal fracture; commonly found in oxidized nickel ore deposits.
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