Opal
Opals are not truely crystalline and are therefore mineraloids. They comprise of (hydrated silica glass). Specimen from Queensland, Australia
Picture No
10710401
Media ID
47583980
Size
5570px x 3312px
(9.1MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Australasia Hydrated Mineraloid Opal Opalescence Silica
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