Opal doublets
Opals are not truely crystalline and are therefore mineraloids They comprise of hydrated silica glass
Size: 4404px × 4292px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: colourful, doublets, fluorescence, gemstone, mineral, mineraloid, opal, opalescence, polished, precious, smooth, sparkle, ultra, uv, violet
