manganese dendritic crystals

manganese dendritic crystals

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Credit: ASTRID & HANNS-FRIEDER MICHLER/SCIENCE PHOTO LIBRARY

Caption: Dendritic deposit of minerals. Macrophotograph of a dendritic structure containing manganese (dark grey) minerals. These branched structures are formed as thin film crystals in cracks in rock strata, the minerals having been carried there by percolating water. This structure is seen in a White Jura sedimentary rock. The brown tint in the base rock comes from thin deposits of iron minerals. Magnification x2.5 at 6x7cm size.

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Keywords: dendritic crystals, dendritic pattern, earth science, geology, manganese, mineral, minerals, repeated

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