Thin section polarised light micrograph of a rock containing tourmaline (or turmaline) crystals in a graphic pattern. Like in the better-known graphic granite this pattern results from the simultaneous crystallization of two or more minerals in a melt at a critical temperature, the eutectic point, during cooling of that melt. Actual size is 35 x 48 mm.

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Size: 8394px × 6660px
Location:
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, crystallography, crystals, earth, eutectic, geological, geology, granite, graphic, light, micrograph, mineral, mineralogy, pattern, point, polarization, polarized, sciences, texture, tourmaline