Mineral Factbook

Andersonite

Na2Ca(UO2)(CO3)3·5-6H2OIMA symbol: Anrgrandfathered

Andersonite is a carbonate or nitrate mineral with the formula Na2Ca(UO2)(CO3)3·5-6H2O, crystallizing in the trigonal system. It has a calculated density of 2.796 g/cm3.

Photos

Andersonite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Andersonite specimen photo
Pacific Museum of Earth from Canada · CC BY-SA 2.0 · Commons
Andersonite specimen photo
BLFrank · CC BY-SA 4.0 · Commons
Andersonite specimen photo
Weirdmeister · CC BY-SA 4.0 · Commons

Crystallography

Crystal systemtrigonal crystal systemWikidata (CC0)
Space groupR -3 m :H
Cell (Å, °)a = 17.902, b = 17.902, c = 23.734; α = 90, β = 90, γ = 120
Cell volume6587.26 ų, Z = 18
Axial ratios1.0000:1:1.3258calculated from COD 9007645
Source structureCOD 9007645 (Acta Crystallographica, Section B, 1981)

Physical properties

Density (calculated)2.796 g/cm³calculated from COD 9007645

Classification

Nickel-Strunz (10th)5.ED.30Wikidata (CC0)
Nickel-Strunz (9th)5.ED.30Wikidata (CC0)