Class

non-silicate mineral

Compound type

vanadate

Chemical functions

	Function	Number	Relevance
	$R-OH$	2	main

Chemical bonds

	Bond	Number	Relevance
	$V-O$	50
	$-O-H$	2	main

Oxides

Formula	$CaO$	$V_{2}O_{5}$	$H_{2}O$
Mass fraction (%)	12.16	65.71	22.13

Strunz

Class

oxides - hydroxides - arsenites (04)

Division

V[5+,6+] vanadates (04.H)

Family

[6]-Sorovanadates (04.HC)

Code

04.HC.05

Dana

Major class

phosphates, arsenates, vanadates (VII)

Class

vanadium oxysalts (47)

Type

Anhydrous Containing Hydroxyl or Halogen (47.02)

Group

Pascoite group (47.02.01)

Code

47.02.01.01

Phase type

crystalline

Crystal system

monoclinic

Crystal class

prismatic

Crystal class symbol

2/m (C2h)

Crystal spacegroup

C2/m

Texture

polycrystalline

Molar mass

1383.89 $g/mol$

Density

1.87 $g/cm^3$

Refringence type

biaxial

Refringence sign

negative

Birefringence

0.050

Refraction index $n_{\alpha}$

1.775

Refraction index $n_{\beta}$

1.815

Refraction index $n_{\gamma}$

1.825

Dispersion V

r > v very strong

Color

yellow brown, yellow orange, red orange

Diaphaneity

translucent

Luster

vitreous