Mineral Factbook

Violarite

FeNi2S4IMA symbol: Viograndfathered

Violarite is a sulfide or sulfosalt mineral with the formula FeNi2S4, crystallizing in the cubic system. It has a calculated density of 4.76 g/cm3.

Photos

Violarite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Violarite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Violarite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Violarite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons

Crystallography

Crystal systemcubic crystal systemWikidata (CC0)
Space groupF d -3 m :2
Cell (Å, °)a = 9.4424, b = 9.4424, c = 9.4424; α = 90, β = 90, γ = 90
Cell volume841.874 ų, Z = 8
Axial ratios1.0000:1:1.0000calculated from COD 9010109
Source structureCOD 9010109 (American Mineralogist, 2006) — 1 of 9 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.8471.6692.3611.8173.3381.229
I/I₀10082.246.143.330.516.6

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9010109; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)4.76 g/cm³calculated from COD 9010109

Chemistry (calculated)

Molecular weight301.49 g/molcalculated from the IMA formula
Composition (wt%)Fe 18.52%, Ni 38.94%, S 42.54%

Classification

Nickel-Strunz (10th)2.DA.05Wikidata (CC0)
Nickel-Strunz (9th)2.DA.05Wikidata (CC0)
Dana (8th)2.10.1.8Wikidata (CC0)