Muscovite, a variety of mica, is a silicate mineral of aluminium and potassium. It is found in metamorphic rocks, like gneiss, and plutonic rocks (ign

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Muscovite, a variety of mica, is a silicate mineral of aluminium and potassium. It is found in metamorphic rocks, like gneiss, and plutonic rocks (igneous rocks that solidify slowly under high pressure deep in the Earth's crust), like granite. It gives such rocks a slight sparkle. This specimen has hematite and limonite inclusions. It is from Adelaide, Australia.

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Size: 3416px × 5117px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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