Ferropericlase | SSHADE

Mineral phase

IMA name: Ferropericlase

Name and identifiers

Secondary names: magnesiowüstite

Class: non-silicate mineral
Compound type: oxide-hydroxide

Chemical composition

Formula: $(Mg,Fe)O$
Chemical formula: (Mg,Fe)O
Elemental formula: (Mg)0-1 (Fe2+)0-1 O
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$Mg$	Magnesium	element	0 - 1		constituent element	main
	$Fe^{2+}$	Iron(II) cation	element	0 - 1		constituent element	main
	$O$	Oxygen	element	1		constituent element	main

Classifications

Strunz

Class: oxides - hydroxides - arsenites (04)
Division: metal:oxygen = 2.1 and 1:1 (04.A)
Family: M:O = 1:1 (and up to 1:1.25) with small to medium-sized cations only (04.AB)
Code: 04.AB.25

Dana

Major class: oxides and hydroxides (III)
Class: simple oxides (04)
Type: with a cation charge of 2+ (A++O) (04.02)
Group: Periclase group (Isometric, Fm3m) (04.02.01)

Endmembers and polymorphs

End-members

Crystallography

Phase type: crystalline
Crystal system: isometric (cubic)
Crystal class: hexoctahedral
Crystal class symbol: m-3m (Oh)
Crystal spacegroup: Fm-3m

Physical properties

Molar mass: 40.3 - 71.85 $g/mol$
Density: 3.67 - 5.88 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Refringence type: isotropic
Refraction index $n_{\alpha}$: 1.74 - 2.13
Pure color: various
Color: various
Diaphaneity: transparent to opaque
Luster: various

Links and Publications

Links