Constituent Cinnabar | SSHADE

Constituent

Name: Cinnabar
IMA name: Cinnabar

Class: non-silicate mineral
Compound type: sulfide

Constituent abundance in material

Relevance: main - minor
Arrangement: in multi-phases

Chemical composition

Formula: $\alpha-HgS$
Chemical formula: HgS
Elemental formula: Hg S
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$Hg$	Mercury	element	1		constituent element	main
	$S$	Sulfur	element	1		constituent element	main

Classifications

Strunz

Class: sulfides - sufosalts (02)
Division: metal sulfides, M:S = 1:1 (and similar) (02.C)
Family: With Sn, Pb, Hg, etc. (02.CD)
Code: 02.CD.15a

Dana

Major class: sulfides (II)
Class: sulfides - including selenides and tellurides (02)
Type: where Am Bn Xp, with m:p=1:1 (02.08)
Group: -Cinnabar- group (02.08.14)
Code: 02.08.14.01

Phase type: crystalline

Crystallography

Crystal system: trigonal
Crystal class: trapezohedral
Crystal class symbol: 32 (D3)
Crystal spacegroup: P3(1)21

Physical properties

Molar mass: 232.66 $g/mol$
Density: 8.1 $g/cm^3$

Optical properties

Refringence type: uniaxial
Refringence sign: positive
Birefringence: 0.351
Refraction index $n_{\alpha}$: 2.905
Refraction index $n_{\beta}$: 3.256
Color: lead gray, brown, brown pink, vermilion, gray
Diaphaneity: translucent to opaque
Luster: adamantine