A selection of topaz cut stones
Topaz is the hardest silicate mineral and comprises of (aluminum silicate fluoride hydroxide)
Picture No
10703722
Media ID
47586339
Size
4488px x 1816px
(3.4MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Aluminium Aluminum Fluoride Gemstone Hydroxide Jewel Mineral Nesosilicate Orthosilicate Selection Silicate Sparkle Topaz Tough Transparent
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