Cinnabar

This image is part of the feature Nature's Paintbox

Credit: DIRK WIERSMA/SCIENCE PHOTO LIBRARY

Caption: Cinnabar (mercury sulphide) is the most important ore of mercury. Cinnabar deposits drops of the metallic element mercury when heated. It usually occurs in scarlet microcrystalline or earthy masses but occasionally rhombohedral, tabular crystals (as here) are found. It was once used as the mineral pigment vermilion.

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Keywords: cinnabar, earth science, geological, geology, horizontal, mercury sulphide, mineral, ore, pigement, rock, vermilion

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