Polished agates. Several polished agate stones showing marble-like patterns. Agate is a type of chalcedony, a crypto-crystalline variety of the minera

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Polished agates. Several polished agate stones showing marble-like patterns. Agate is a type of chalcedony, a crypto-crystalline variety of the mineral quartz (silicon oxide). The presence of impurities can give it a wide range of colours which may be distributed in regular bands or zones, in clouds or in dendritic forms.

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Size: 3846px × 2480px
Photo credit: © KAJ R. SVENSSON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: agate, agates, chalcedony, mineral, polished, quartz