Molybdenite | SSHADE

Mineral phase

IMA name: Molybdenite

Name and identifiers

CAS number: 1317-33-5

Class: non-silicate mineral
Compound type: sulfide

Chemical composition

Formula: $MoS_2$
Chemical formula: MoS2
Elemental formula: Mo S2
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$Mo$	Molybdenum	element	1		constituent element	main
	$S$	Sulfur	element	2		constituent element	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$\geq \mid Mo-S-$	4

Classifications

Strunz

Class: sulfides - sufosalts (02)
Division: metal sulfides, M:S = 1:2 (02.E)
Family: M:S = 1:2 (02.EA)
Code: 02.EA.30

Dana

Major class: sulfides (II)
Class: sulfides - including selenides and tellurides (02)
Type: where AmBnXp, with (m+n):p=1:2 (02.12)
Group: Molybdenite group (02.12.10)
Code: 02.12.10.01

Crystallography

Phase type: crystalline
Crystal system: hexagonal
Crystal class: dihexagonal-dipyramidal
Crystal class symbol: 6/mmm (D6h)
Crystal spacegroup: P6(3)/mmc

Physical properties

Molar mass: 160.07 $g/mol$
Density: 4.62 - 5.0 $g/cm^3$

Thermodynamical properties

State NTP

solid

Phase transitions

Phase transition type	Other phases	Temperature - Pressure
solid-liquid	liquid	2375°C (2648 K)

Optical properties

Refringence type: uniaxial
Pure color: black
Color: black, lead gray, gray
Diaphaneity: opaque
Luster: metallic

Links and Publications

Links