Mineral Factbook

Sklodowskite

Mg(UO2)2(SiO3OH)2·6H2OIMA symbol: Sdsgrandfathered

Sklodowskite is a silicate mineral with the formula Mg(UO2)2(SiO3OH)2·6H2O, crystallizing in the monoclinic system. It has a calculated density of 3.602 g/cm3. Its streak is yellow.

Photos

Sklodowskite specimen photo
Weirdmeister · CC BY-SA 4.0 · Commons
Sklodowskite specimen photo
BLFrank · CC BY-SA 4.0 · Commons
Sklodowskite specimen photo
Weirdmeister · CC BY-SA 4.0 · Commons
Sklodowskite specimen photo
Ra'ike (see also: de:Benutzer:Ra'ike) · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemmonoclinic crystal systemWikidata (CC0)
Space groupC 1 2/m 1
Cell (Å, °)a = 17.382, b = 7.047, c = 6.61; α = 90, β = 105.9, γ = 90
Cell volume778.688 ų, Z = 2
Axial ratios2.4666:1:0.9380calculated from COD 9012786
Source structureCOD 9012786 (Crystal Structure Communications, 1977) — 1 of 3 structures

Physical properties

Density (calculated)3.602 g/cm³calculated from COD 9012786
Streak
yellowsingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight858.63 g/molcalculated from the IMA formula
Composition (wt%)Mg 2.83%, U 55.44%, O 33.54%, Si 6.54%, H 1.64%

Classification

Nickel-Strunz (10th)9.AK.10Wikidata (CC0)
Nickel-Strunz (9th)9.AK.10Wikidata (CC0)