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Cinnabar (Photo) [abbr. Cin ]

Year of discovery: AD 800 (World), AD 698 (Japan)

Locality list: 245 localities of cinnabar

• HgS
• [Hg²⁺][S]^2-

• Class: Sulfide
• Insoluble in: HCl
• Paramorph: Replace Metacinnabar.
• Substitution pseudomorph: Replace Livingstonite.
• Stable below 344 degree, formed from alkaline solution.

• Polymorph: Metacinnabar (α, Cubic, Stable below 344 degree, Formed from acidic solution below 200 degree)
• Polymorph: Hypercinnabar (Hexagonal)

• Hg => Cd: Hawleyite (α), Greenockite (β)
• Hg => Zn: Sphalerite (α), Wurtzite (β)
• Hg => Fe: Rudashevskyite, Troilite
• Hg => Mn: Alabandite (α), Rambergite (β)
• Hg => Ni: Millerite (β)
• Hg => Cu: Covellite

• S => Te: Coloradoite
• S => Se: Tiemannite

• Color: Blood red
• Streak: Red
• Luster: Adamantine
• Diaphaneity: Transparent-Translucent

• Habit: Rhombohedral, Thick tabular on {0001}, Short prismatic parallel to {10-10}
• Twin: {0001} along [0001]

• Cleavage: Perfect on {1010} (3 planes)
• Hardness: 2-2.5
• Density: 8.2

• System: Trigonal
• Group: 32, P3₁21
• Lattice: a=4.1, c=9.5

Etymology: Kinnabaris (red paint) in Greek, Cinnabaris of medical term in Latin, Zinjifrah (dragon blood) in Persian