cross section agate |
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| navigate by keyword : agate atlas background black color cross cut gemology geode geology metals mineral morocco nature ornament oxides pattern precious quartz section semi silica specimen stalactite stone surface |
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| Multicolored silica bands colored with metal oxides are visible. Spherolites and lamellas of chalcedony, quartz. Very large color variation, from white to purple. Origin: Agouin, Atlas mountains, Morocco |
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