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Jul 8, 2021
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Where does the silica come from?
Jul 8, 2021
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Jul 8, 2021
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Jul 8, 2021
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What is the influence of the geology?
Jul 8, 2021
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Jul 8, 2021
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Jul 8, 2021
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How do the opal solutions move in the ground?
Jul 8, 2021
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Jul 8, 2021
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Jul 8, 2021
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Where does the water come from?
Jul 8, 2021
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Jul 8, 2021
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Jun 13, 2021
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Where is opal deposited, holes voids, fossil cast, fossil replacement?
Jun 13, 2021
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Jun 13, 2021
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Jun 13, 2021
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What are the conditions for forming precious opal silica?
Jun 13, 2021
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Jun 13, 2021
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Contributing Scientists
Don Hoover
Don Hoover
Laurie Aldridge
Laurie Aldridge
Boris Chauviré
Boris Chauviré
Neville Curtis
Neville Curtis
Paul Thomas
Paul Thomas
Bruce Dickson
Bruce Dickson

 

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