Mineral Factbook

Greenockite

CdSIMA symbol: Gnkgrandfathered

Greenockite is a sulfide or sulfosalt mineral with the formula CdS, crystallizing in the hexagonal system. It has a calculated density of 4.821 g/cm3.

Photos

Greenockite specimen photo
HolDu · CC BY-SA 3.0 de · Commons
Greenockite specimen photo
HolDu · CC BY-SA 3.0 de · Commons
Greenockite specimen photo
HolDu · CC BY-SA 3.0 de · Commons
Greenockite specimen photo
James St. John · CC BY 2.0 · Commons

Crystallography

Crystal systemhexagonal crystal systemWikidata (CC0)
Space groupP 63 m c
Cell (Å, °)a = 4.137, b = 4.137, c = 6.7144; α = 90, β = 90, γ = 120
Cell volume99.52 ų, Z = 2
Axial ratios1.0000:1:1.6230calculated from COD 9011663
Source structureCOD 9011663 (Physical Review B, 1993) — 1 of 3 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)3.1613.5831.8982.0683.3571.761
I/I₀10058.549.448.442.437.7

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9011663; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)4.821 g/cm³calculated from COD 9011663

Chemistry (calculated)

Molecular weight144.48 g/molcalculated from the IMA formula
Composition (wt%)Cd 77.81%, S 22.19%

Classification

Nickel-Strunz (10th)2.CB.45Wikidata (CC0)
Nickel-Strunz (9th)2.CB.45Wikidata (CC0)
Dana (8th)2.8.7.2Wikidata (CC0)