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Australian Opal Opal Types

Crystal Opal – The Worlds most beautiful opal

Crystal Opal has the most vibrant colours of all Australian Opal. Hold it up to the light and you can see through it but let the light reflect on it and the colours leap out.

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Australian Opal Opal Types

Queensland Boulder Opal

Boulder opal is one of the most beautiful forms of opal and is found only in Queensland. Cutting and polishing this form of opal requires some special attention and this is covered in this post.

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Australian Opal Opal Types

Australian Opal – World’s Best

Australian Opal Ausralian Opal is arguably the most beautiful and stable opal in the world. It is an amorphous form of Silica with a water content varying from 3 percent to 21 percent but usually within the range of 5-10 percent. Amorphous is defined as “without any clearly defined shape or form“. This means that […]

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Australian Opal Opal Types

Lightning Ridge Fossils

Lightning Ridge Opal Field Lightning Ridge Fossils are among some of the most amazing fossils found any where in the world. At Lightning Ridge opal is usually found near the interface of the Wallangulla sandstone and the Finch clay facies (called the opal dirt). The opal is found on ridges surrounded by black soil plains. […]

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Australian Opal Opal Types

Opalised Fossil photographs

I am sorry to have to delete the content of this post. Andre has instructed me to remove all of his photographs. Johno  

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Australian Opal Opal Fields Opal Types

The Desert Sea Collection of Opals – Stolen

The Desert Sea Collection The Comfort Inn Experience Motel at Coober Pedy is famous for it’s owners great collection of opalised sea shells known as” The Desert Sea Collection“. In March 2014, Andre was in Coober Pedy and was shown this collection. He also photographed the Desert Sea Collection. He was shocked to hear that […]

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Australian Opal Opal Types

More Andamooka Matrix Opal

Andamooka Matrix Opal Andamooka matrix opal is still a much maligned form of opal in many people’s minds. The fact that it is a treated form of opal seems to ignore the fact that it is still basically one of natures treasures with it’s beauty enhanced by changing the background colour only. The opal itself […]

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Australian Opal Opal Types

Opalised Fossils You Must Not Miss

Opalised Fossils Opalised fossils are one of natures greatest treasures. Opal can hide many surprises. Because opal was generally formed at the bottom of the sea or swamp, it has replaced many interesting things. Sea shells, fresh water shells, sea creatures, bones and plants have all been found transformed into beautiful opal. One of my […]

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Australian Opal Opal Treatments Opal Types

Andamooka Rainbow Matrix Opal

Andamooka Rainbow Matrix Opal is fast becoming popular with those who can’t afford a “Real Opal”. Originally it was called “concrete” because that was what it looked like although you could see small specks of opal in amongst the concrete like grains. It is a porous quartzite host rock in which opal has been deposited […]

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Australian Opal Opal Treatments Opal Types

More Andamooka Matrix Opal

More Andamooka Matrix Opal During the last month I was contacted by Andre who told me he had a couple of pieces of Andamooka matrix opal he had collected some time ago. He purchased one of these from Cash Converters and they were part of a deceased estate. Andre was obviously quite astute as the […]