Opal specimen.

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Size: 3463px × 2523px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: background, black, blue, crystal, crystalline, cut, cut-, earth, facet, gem, gemstone, geology, green, layer, microcrystalline, mineral, mineralogy, moonstone, multicoloured, object, opal, pattern, pink, polished, purple, quartz, refraction, rock, science, shine, silica, single, sparkle