IMA Code

Lgw

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

Chemical bonds

	Bond	Number
	$\geq\mid W-O$	3

Oxides

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

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

-Sidwillite- group (04.05.06)

Code

04.05.06.02

Phase type

crystalline

Crystal system

monoclinic

Crystal class

prismatic

Crystal class symbol

2/m (C2h)

Crystal spacegroup

P2(1)/c

Refringence type

biaxial

Pure color

yellow

Color

greenish yellow, canary yellow

Diaphaneity

transparent

Luster

greasy

Links

• MinDAT: Liguowuite