Gypsum. Polarised light micrograph of a thin section of gypsum. Gypsum is a chemical sedimentary rock, composed mainly of hydrated calcium sulphate. I
Gypsum. Polarised light micrograph of a thin section of gypsum. Gypsum is a chemical sedimentary rock, composed mainly of hydrated calcium sulphate. It may grow as a crystal aggregate (as here) or in giant tabular crystals up to 1 metre in length. Gypsum is used in plaster of Paris, in Portland cement and as a flux in pottery. The most compact form of gypsum is known as alabaster. Object size: 5 mm.
Size: 4781px × 3655px
Photo credit: © ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: alabaster, building, calcium, crystal, crystalline, crystals, dihydrate, earth, geology, geomorphology, gypsum, light, material, micrograph, mineral, multiple, plaster, plm, polarised, rock, rocks, science, section, sedimentary, sulphate, thin, type
