Constituent Coulsonite FeV2O4 | SSHADE

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Constituent

Name: Coulsonite FeV2O4
IMA name: Coulsonite

Class: non-silicate mineral
Compound type: oxide

Constituent abundance in material

Relevance: main - major
Arrangement: single phase
Mass fraction: 1.0

Chemical composition

Formula: $Fe^{2+}V^{3+}_2O_4$
Chemical formula: FeV2O4
Elemental formula: (Fe2+) (V3+)2 O4
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$Fe^{2+}$	Iron(II) cation	element	1		constituent cation	main
	$V^{3+}$	Vanadium(III) cation	element	2		constituent cation	main
	$O$	Oxygen	element	4		constituent element	main

Oxides composition

Oxides

Formula	$V_{2}O_{3}$	$FeO$
Mass fraction (%)	67.6	32.4

Classifications

Strunz

Class: oxides - hydroxides - arsenites (04)
Division: metal:oxygen = 3:4 and similar (04.B)
Family: with only medium-sized cations (04.BB)
Code: 04.BB.05

Dana

Major class: oxides and hydroxides (III)
Class: multiple oxides (07)
Type: (A+B++)2X4 Spinel group (07.02)
Group: Vanadium subgroup (07.02.04)
Code: 07.02.04.02

Phase type: crystalline

Crystallography

Crystal system: isometric (cubic)
Crystal class: hexoctahedral
Crystal class symbol: m-3m (Oh)
Crystal spacegroup: Fd-3m

Texture: polycrystalline

Physical properties

Molar mass: 221.73 $g/mol$
Density: 5.17 - 5.2 $g/cm^3$

Optical properties

Refringence type: isotropic
Refraction index $n_{\alpha}$: 2.29 - from gladstone-dale relationship
Color: blue gray
Diaphaneity: opaque
Luster: metallic