Mineral Factbook

Digenite

Cu1.8SIMA symbol: Dgapproved

Digenite is a sulfide or sulfosalt mineral with the formula Cu1.8S, crystallizing in the trigonal system. It has a calculated density of 5.69 g/cm3. Its streak is black.

Photos

Digenite specimen photo
Lodewicus de Honsvels · CC BY-SA 4.0 · Commons
Digenite specimen photo
Lodewicus de Honsvels · CC BY-SA 4.0 · Commons
Digenite specimen photo
Darla Sondrol · CC0 · Commons
Digenite specimen photo
Juan González · Public domain · Commons

Crystallography

Crystal systemtrigonal crystal systemWikidata (CC0)
Space groupF m -3 m
Cell (Å, °)a = 5.582, b = 5.582, c = 5.582; α = 90, β = 90, γ = 90
Cell volume173.928 ų, Z = 4
Axial ratios1.0000:1:1.0000calculated from COD 9016668
Source structureCOD 9016668 (Journal of Solid State Chemistry, 1991) — 1 of 7 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)1.9742.7911.1393.2231.3961.683
I/I₀10048.823.514.210.78.6

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9016668; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)5.69 g/cm³calculated from COD 9016668
Streak
blacksingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight146.45 g/molcalculated from the IMA formula
Composition (wt%)Cu 78.1%, S 21.9%

Classification

Nickel-Strunz (10th)2.BA.10Wikidata (CC0)
Nickel-Strunz (9th)2.BA.05eWikidata (CC0)