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. Horizontal object size: mm.
Size: 5472px × 3648px
Photo credit: © ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: calcium, caso4, color, colour, coloured, compensation, false-coloured, full-wave, gypsum, light, micrograph, microscope, microscopic, microscopy, mineral, optical, plate, polarisation, polarise, polarised, polarization, polarize, polarized, refraction, sulfate, sulphate
