Karelianite | SSHADE

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Mineral phase

IMA name: Karelianite

Class: non-silicate mineral
Compound type: oxide

Chemical composition

Formula: $V_2O_3$
Chemical formula: V2O3
Elemental formula: V2 O3
Isotope mixture type: terrestrial abundance

	Formula	Name	Family	Number min-max	Isotope mole fraction	State	Relevance
	$V$	Vanadium	element	2		constituent element	main
	$O$	Oxygen	element	3		constituent element	main

Chemical functions and bonds

Chemical bonds

	Bond	Number
	$V-O$	6

Oxides composition

Oxides

Formula	$V_{2}O_{3}$
Mass fraction (%)	100.0

Classifications

Strunz

Class: oxides - hydroxides - arsenites (04)
Division: metal:oxygen = 2:3, 3:5, and similar (04.C)
Family: with medium-sized cations (04.CB)
Code: 04.CB.05

Dana

Major class: oxides and hydroxides (III)
Class: simple oxides (04)
Type: with a cation charge of 3+ (A+++2O3) (04.03)
Group: Corundum-Hematite group (Rhombohedral: R-3c) (04.03.01)
Code: 04.03.01.04

Crystallography

Phase type: crystalline
Crystal system: trigonal
Crystal class: ditrigonal-scalenohedral
Crystal class symbol: -3m (D3d)
Crystal spacegroup: R-3c

Physical properties

Molar mass: 149.88 $g/mol$
Density: 4.87 $g/cm^3$

Thermodynamical properties

State NTP: solid

Optical properties

Refringence type: uniaxial
Refringence sign: unknown
Refraction index $n_o$ (w): 2.36 - 2.38
Pure color: black
Color: black
Diaphaneity: opaque
Luster: metallic

Links and Publications

Links