Mineral Factbook

Cavansite

Ca(V4+O)(Si4O10)·4H2OIMA symbol: Cavapproved

Cavansite is a silicate mineral with the formula Ca(V4+O)(Si4O10)·4H2O, crystallizing in the orthorhombic system. It has a calculated density of 2.234 g/cm3.

Photos

Cavansite specimen photo
Ivar Leidus · CC BY-SA 4.0 · Commons
Cavansite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Cavansite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Cavansite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemorthorhombic crystal systemWikidata (CC0)
Space groupP n m a
Cell (Å, °)a = 9.609, b = 13.6833, c = 9.7559; α = 90, β = 90, γ = 90
Cell volume1282.73 ų, Z = 4
Axial ratios0.7022:1:0.7130calculated from COD 9014929
Source structureCOD 9014929 (American Mineralogist, 2012) — 1 of 8 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)7.9446.8463.4213.9326.1222.781
I/I₀10037.829.722.321.521.2

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9014929; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)2.234 g/cm³calculated from COD 9014929

Classification

Nickel-Strunz (10th)9.EA.50Wikidata (CC0)
Nickel-Strunz (9th)9.EA.50Wikidata (CC0)