Mineral Factbook

Fingerite

Cu11O2(VO4)6IMA symbol: Fgrapproved

Fingerite is a phosphate, arsenate, or vanadate mineral with the formula Cu11O2(VO4)6, crystallizing in the triclinic system. It has a calculated density of 4.774 g/cm3.

Photos

Fingerite specimen photo
David Hospital · CC BY 4.0 · Commons

Crystallography

Crystal systemtriclinic crystal systemWikidata (CC0)
Space groupP -1
Cell (Å, °)a = 8.158, b = 8.269, c = 8.044; α = 107.1, β = 91.4, γ = 106.4
Cell volume494.118 ų, Z = 1
Axial ratios0.9866:1:0.9728calculated from COD 9000956
Source structureCOD 9000956 (American Mineralogist, 1985)

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.6946.4732.8982.7472.0642.716
I/I₀10097.989.787.481.181

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9000956; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)4.774 g/cm³calculated from COD 9000956

Chemistry (calculated)

Molecular weight1420.64 g/molcalculated from the IMA formula
Composition (wt%)Cu 49.2%, O 29.28%, V 21.51%

Classification

Nickel-Strunz (10th)8.BB.80Wikidata (CC0)
Nickel-Strunz (9th)8.BB.80Wikidata (CC0)
Dana (8th)41.11.3.1Wikidata (CC0)