Chrysoprase is a valuable variety of chalcedony (cryptocrystalline quartz), owing its vibrant green color to nickel impurities. Its shades range from delicate apple-green to deep, rich green, making it one of the most coveted members of the chalcedony family.
The name originates from the Greek words 'chrysos' (golden) and 'prason' (leek), referring to its characteristic color. Known since ancient times, chrysoprase was highly prized as a gemstone and ornamental stone, particularly popular during the Victorian era and in the Art Deco style. Its translucency and rich color allow for the creation of exquisite jewelry – rings, necklaces, earrings, brooches – as well as for stone carving and inlays. Its unique color and relative rarity in high quality make it appealing to mineral collectors and jewelry connoisseurs.
Historically, chrysoprase was attributed with properties of bringing calm and optimism, and its fresh green color is often associated with spring, renewal, and vital energy.
Chrysoprase is a stone of natural beauty, adding elegance and freshness to any look or mineralogical collection.
Physical properties
Chemical formula
SiO₂ (with Ni impurities)
Hardness
6.5 - 7
Crystal system
Trigonal (microcrystalline structure)
Transparency
Translucent to opaque
Luster
Vitreous, waxy
Color
Apple-green, yellowish-green to deep green
Specific gravity
2.58 - 2.64
Jewelry with this mineral
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