Mineral Factbook

Chalcanthite

Cu(SO4)·5H2OIMA symbol: Cctgrandfathered

Chalcanthite is a sulfate mineral with the formula Cu(SO4)·5H2O, crystallizing in the triclinic system. It has a calculated density of 2.263 g/cm3. Its streak is white.

Photos

Chalcanthite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Chalcanthite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Chalcanthite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Chalcanthite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemtriclinic crystal systemWikidata (CC0)
Space groupP -1
Cell (Å, °)a = 6.141, b = 10.736, c = 5.986; α = 82.27, β = 107.43, γ = 102.67
Cell volume366.361 ų, Z = 2
Axial ratios0.5720:1:0.5576calculated from COD 9008253
Source structureCOD 9008253 (Zeitschrift fur Kristallographie, 1975) — 1 of 2 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)4.7473.71545.4983.3142.757
I/I₀10072.963.656.847.947

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9008253; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)2.263 g/cm³calculated from COD 9008253
Streak
whitesingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight249.68 g/molcalculated from the IMA formula
Composition (wt%)Cu 25.45%, S 12.84%, O 57.67%, H 4.04%

Classification

Nickel-Strunz (10th)7.CB.20Wikidata (CC0)
Nickel-Strunz (9th)7.CB.20Wikidata (CC0)
Dana (8th)29.6.7.1Wikidata (CC0)