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Silicate (38/75)

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CROSS SECTION OF BLUE AGATE<br />
SiO2<br />
Variegated Fibrous Silicate<br />
Alternating layers of Chalcedony and Opal, or granular cryptocrystalline quartz in fine parallel concentrically curving bands.

Fphoto-46729906C-3JY.jpg

CROSS SECTION OF BLUE AGATE
SiO2
Variegated Fibrous Silicate
Alternating layers of Chalcedony and Opal, or granular cryptocrystalline quartz in fine parallel concentrically curving bands.

Copyright:© 1999 Jeff J. Daly - Fundamental Photographs

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