Agate (Silicon dioxide) specimen.

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Size: 4148px × 2107px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: agate, background, black, chalcedony, chemistry, colour, cross, crystal, crystalline, crystallized, cut, cut-, earth, gemstone, geology, layer, layered, microcrystalline, mineral, mineralogy, nature, object, pattern, polished, rock, science, section, silica, silicate, single, slice, specimen, stone