Chrysoprase
Natural stone
An apple-green chalcedony, coloured by nickel. Strong sunlight and heat can fade it, so keep it out of the flame.
Hardness (Mohs): 6.5–7
Natural stone
An apple-green chalcedony, coloured by nickel. Strong sunlight and heat can fade it, so keep it out of the flame.
Hardness (Mohs): 6.5–7