Crystal opal has a translucency that allows deeper colours to be seen. It can be found in all the opal regions within Australia. Opal Type: Dark Crystal Opal, Opal Weight (ct): 2.28ct Dimensions (W x L x H): 8.5 x 14 x 3mm Colour Intensity: Bright Dominant Colours: Green, Orange, Yellow, Purple Pattern: Foil Flash Origin: Coober Pedy, Australia