Quartz variety amethyst
Amethyst crystals lining an agate geode from Germany. Amethyst is a gemstone variety of quartz
Picture No
10703643
Media ID
47585483
Size
2682px x 2946px
(3.8MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Amethyst Gemstone Mineral Quartz Silicate Tectosilicate
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