M MineralystRock & Mineral Guide
Mineral

Cinnabar

Cinnabar — reference photo

Cinnabar is a mineral with the chemical formula HgS. It has a Mohs hardness of 2 - 2.5 and mercury-like, submetallic luster.

Cinnabar properties

TypeMineral
Chemical formulaHgS
Mohs hardness2 - 2.5
LusterMercury-like, submetallic
Typical colorsBright red to dark red, occasionally yellow or gray
FormationTypically found in hydrothermal veins and hot springs
Rarity6 / 10

Mohs hardness 2–2.5 — very soft

1 · Talc5 · Apatite10 · Diamond
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