Cinnabar, mercury ore
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.