DIRK WIERSMA / SCIENCE PHOTO LIBRARY DIRK WIERSMA / SCIENCE PHOTO LIBRARY
Cinnabar. Red deposits of the cinnabar in a sample of a mercury ore. Cinnabar is a mercury sulphide (HgS), and is the most common ore for the extraction of mercury. It is usually found in veins associated with recent volcanism, but is also deposited near hot springs. Mercury is a liquid metal used in industry and in equipment such as thermometers.
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