Solid Opal

Opal that has been mined and is presented in one piece either in its naturally occurring state or after being cut and polished. It has not been chemically treated and has no other materials cemented to it other than by nature. Solid Opal can be put in water without worry.

Solid Crystal Opal

Is a transparent Solid Opal with bright colours flashing through it. It is the most desired find of the Coober Pedy Opal miners, Being one of the most sought after of the Coober Pedy Opals. Crystal Opal is called ‘Crystal’ because of its transparency.

Solid Black Opal

Is a naturally dark Solid Opal, Black Opal is not just black as the name suggests, It is a dark opal with bright colours flashing through it.

Solid Boulder Opal

Is a bright Solid Opal that is usually cut with its natural Ironstone base left on it giving it more body. Boulder opal is not mined in Coober Pedy.

Solid Matrix Opal

Is a Beautiful Solid Opal that is a natural matrix/composite of opal and a mother stone which sometimes gives a speckled appearance. Matrix is often cooked in a solution creating a contrast in the mother stone allowing the natural colour of the opal to be seen.

Solid Milky Opal

A Solid White opal that is called Milky because of its pale colour and lack of intense bright colours.

Doublet Opal

A "Doublet" is a thin layer of Solid Opal that is laminated to a base of dark material making up 2 layers.

Triplet Opal

A "Triplet" is a doublet with a clear cap of either glass or quartz making up 3 layers.

Weight

Opal is weighed in Carats, Five Carats is equal to one gram.

Hardness

Hardness of opal is in between 5 - 6, Opal is approximately as hard as glass. We recommend not to wear Opal everyday because they may become scratched and appear dull.