Chalcedony
Chalcedony or agate is a variety of cryptocrystalline quartz (silicon dioxide). Structural specimen from the Natural History Museum, London
Picture No
10710442
Media ID
47574629
Size
3191px x 4373px
(10.0MB)
Credit
Mary Evans / Natural History Museum
Source
Photograph from the Natural History Museum Collection
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Agate Chalcedony Cryptocrystalline Dioxide Micro Mineral Quartz Shiny Silicate Silicon Structural Tectosilicate
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