Chinese vermillion

The abundance of mercury in Earth s cmst is estimated to be about 0.5 parts per million. That makes it one of the 20 least common elements. It very rarely occurs as an element. Instead, it is usually found as a compound. Its most common ore is cinnabar, or mercuric sulfide (HgS). Cinnabar usually occurs as a dark red powder. It is often called by the common name of vermillion or Chinese vermillion. 

Mercuric Sulfide, Black (Ethiops Mineral) Mercuric Sulfide, Red (Vermillion,Artificial Cinnabar, Chinese Red)... 

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