Molybdite | SSHADE

Processing math: 100%

Mineral phase

IMA name: Molybdite

Class: non-silicate mineral
Compound type: oxide

Chemical composition

Formula: $MoO_3$
Chemical formula: MoO3
Elemental formula: Mo O3
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$Mo$	Molybdenum	element	1		constituent element	main
	$O$	Oxygen	element	3		constituent element	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$\geq \mid Mo-O-$	6

Oxides composition

Oxides

Formula	$MoO_{3}$
Mass fraction (%)	100.0

Classifications

Strunz

Class: oxides - hydroxides - arsenites (04)
Division: metal:oxygen inf or = 1:2 (04.E)
Family: (M2O5, MO3) (04.EA)
Code: 04.EA.10

Dana

Major class: oxides and hydroxides (III)
Class: simple oxides (04)
Type: with a cation charge of 6+ (A++++++ O3) (04.05)
Group: -Molybdite- group (04.05.01)
Code: 04.05.01.01

Crystallography

Phase type: crystalline
Crystal system: orthorhombic
Crystal class: dipyramidal
Crystal class symbol: mmm (D2h)
Crystal spacegroup: Pnma

Physical properties

Molar mass: 143.94 $g/mol$
Density: 4.72 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Refringence type: biaxial
Refringence sign: unknown
Refraction index $n_{\alpha}$: 2.12 - 2.13
Pure color: colorless
Color: colorless, greenish yellow, light greenish yellow
Diaphaneity: transparent
Luster: adamantine

Links and Publications

Links