Is a kind of Chalcedony but with nickel in it that so often gives it a green colour. The shade can vary from eau-de-nil to an deep apple green but, whatever variation, often has black markings that can give it a crocodile skin appearance. Being opaque, it is its colour that makes it desirable. Rumanian legend states that a person who works with a Chrysoprase has the ability to understand the language of lizards.
Description: It is found all over the world but significant amounts are found in Australia, Russia, USA, Brazil and, strangely the biggest deposits of all are in Poland.
Hardness: 6 – 7 on Mohs Scale