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What colour is cinnabar?

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A periodic table element box for mercury shows its symbol Hg, atomic number 80, atomic weight 200.592, electron configuration, and name. Icons indicate mercury is a transition metal, liquid at room temperature, has a rhombohedral crystal structure, and is weakly basic. — mercury Properties of mercury.

Cinnabar is a red mercury sulfide (HgS) mineral. It is the principal ore of mercury and is characterized as a red crystalline solid.12

While the term "green cinnabar" exists, it does not refer to the mineral cinnabar; rather, it is a name used for certain green pigments composed of other substances, such as fired oxides of cobalt and zinc or a mixture of chrome yellow and Prussian blue.3