DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY
Almandine crystals in schist. Close-up of numerous almandine crystals (dark) in their schist host rock (grey). Almandine is a type of brownish-red garnet consisting of silicate combined with iron and aluminium. Schist is a metamorphic rock. This sample is from Fauske, Norway.
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