Polarised light micrograph of a thin section of gabbro, an igneous rock. This is a type of coarse-grained gabbro, showing mainly feldspar with randoml

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Polarised light micrograph of a thin section of gabbro, an igneous rock. This is a type of coarse-grained gabbro, showing mainly feldspar with randomly orientated fractures of lath- shaped crystals and olivine. Feldspar forms lath-shaped crystals consisting of multiple twins. In this micrograph, these twins are seen in a variety of colours because a first-order red compensator plate, or \tint plate\", has been placed in the microscope. Horizontal object size of this section: mm."

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Size: 5472px × 3648px
Photo credit: © ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: crystal, earth, eucrite, feldspar, gabbro, geological, geology, igneous, light, micrograph, olivine, plagioclase, polarised, polarized, rock, rocks, science, section, thin