Introduction to the Different Types of Australian Opal
Did you know that 90% of the worlds Opal is found in Australia? You also might not realise that depending on which Opal mine you are at you will find very different types of Australian Opal. You can find black Opal in New South Wales, white Opal in Queensland and boulder and matrix Opal in South Australia and Queensland.
An absolute stunning piece of Opalized Wood showing the full spectrum of color! Bill Kasso
Opal "Pineapples" - an opal pseudomorph formed by the replacement of glauberite by opal - found only in New South Wales. photo: Grant Pearson Visit Amazing Geologist for more..
37cts Boulder Opal Stone AD323
A fine example of Opal from the Cervenica area in Slovakia. The specimen is gemmy to translucent with a pleasing display of orange (fire opal) and misty blue-white.
Unique Opal after a fossilized Belemnitel Locality: Andamooka opal fields, Andamooka Ranges, Stuart Shelf, South Australia, Australia. Geology Wonders
21.38Ct Queensland Boulder Opal Stone
Koroit Opal from the opal mining fields of Queensland, Australia
One of the most beautiful picture stones I've seen...A top grade Boulder Opal!! Bill Kasso
Opal, The October Birthstone
Exceptional and very rare Oregon opal with visual effect of being underwater when held to light.obtained at Opal Butte Mine. Oregon, USA
11.50 ct Gem Multi Color Natural Queensland Boulder Opal