Gypsum crystals. These rosette-shaped crystal groups of gypsum (calcium sulphate, CaSO4) have formed in a crack or void inside a rhyolitic (composed o

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Gypsum crystals. These rosette-shaped crystal groups of gypsum (calcium sulphate, CaSO4) have formed in a crack or void inside a rhyolitic (composed of rhyolite) matrix rock (red). The individual rosettes are around 10 millimetres in diameter.

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Size: 5526px × 3630px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: calcium, close-, crystal, crystalline, crystallised, crystals, detail, earth, geological, geology, gypsum, matrix, mineral, mineralogy, minerals, rhyolitic, rock, rocks, rosette, rosettes, sample, science, specimen, sulphate