Bentonite specimen.

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Bentonite specimen, right blue is its natural color, center left greens oxidized from prolonged time in the sunlight Wyoming, USA North America, 'Hydrous silicate of alumina'

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Size: 5150px × 3522px
Location: Wyoming, USA, North America
Photo credit: © inga spence / Alamy / Afripics
License: Licensed
Model Released: No

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