Lapis lazuli. Specimen of lapis lazuli (sodium calcium aluminium silicate sulphur sulphate) with one polished face. Lapis lazuli is a rock containing

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Lapis lazuli. Specimen of lapis lazuli (sodium calcium aluminium silicate sulphur sulphate) with one polished face. Lapis lazuli is a rock containing the mineral lazurite, which gives it a deep blue colour, and also flecks of the golden-yellow mineral pyrite (iron sulphide). This specimen is from Persia.

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Size: 2506px × 3486px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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