Opal detail
Opals are not truely crystalline and are therefore mineraloids. They comprise of (hydrated silica glass). Specimen from the Natural History Museum, London. Photographed by Frank Greenaway
Picture No
10713237
Media ID
47592749
Size
4080px x 4080px
(10.6MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Gemstone Geological Greenaway Mineralogy Mineraloid Multicoloured Opal Opalescence Silica
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