light opal
crystal opal
boulder opal
boulder matrix opal
black opal
composite opal
Light Opal comes from the South Australian fields of Mintabie, Coober Pedy and Andamooka, although the first material was mined in the state of New South Wales at White Cliffs (1887).

The commonly termed 'white opal' can be identified by a light body tone. Light opal is usually found in seams, unlike most other types of precious opal, allowing it to be cut into standard sizes, for use in commercial of jewellery.