description Chrysoprase Overview
Chrysoprase is a translucent green variety of chalcedony, which is a microcrystalline form of quartz. Its color is caused mainly by small amounts of nickel-bearing minerals dispersed through the silica, and the shade can range from pale green to a stronger apple green. It is cut into cabochons, beads, carvings, and other ornamental objects. Australia has been an important source of gem-quality chrysoprase, although deposits also occur in other countries.
help Chrysoprase FAQ
What causes chrysoprase to be green?
Its green color mainly comes from small amounts of nickel-bearing minerals dispersed through chalcedony. The shade can range from pale green to a strong apple green.
Is chrysoprase a type of quartz?
Yes. It is a translucent variety of chalcedony, and chalcedony is a microcrystalline form of quartz.
How is chrysoprase used in jewelry?
It is commonly cut into cabochons, beads, and other smooth polished forms. The even green color and translucency make it useful for rings, pendants, and bracelets.
Can chrysoprase fade in sunlight?
Some chrysoprase can lose color with prolonged heat or strong light, especially if its color is partly caused by hydrated nickel minerals. Storing it away from intense sunlight helps protect the green appearance.
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