Black Opal cabochon
A specimen of black opal cabochon from Wallangulla, Queensland, Australia. Opal is not a single crystal, but is made up of tiny spheres of silica
Picture No
10710141
Media ID
47579936
Size
4654px x 4070px
(9.9MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Australasia Cabochon Gemstone Mineral Mineraloid Opal Queensland Silica Sphere
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