Mineral Factbook

Uranocircite

Ba(UO2)2(PO4)2·10H2OIMA symbol: Urcrenamed

Uranocircite is a phosphate, arsenate, or vanadate mineral with the formula Ba(UO2)2(PO4)2·10H2O, crystallizing in the tetragonal system. It has typically green or yellow in color, with a pearly luster, a specific gravity of 3.53. Cleavage is distinct or perfect.

Photos

Uranocircite specimen photo
Géry PARENT · CC BY-SA 3.0 · Commons
Uranocircite specimen photo
Géry PARENT · CC BY-SA 3.0 · Commons
Uranocircite specimen photo
Weirdmeister · CC BY-SA 4.0 · Commons
Uranocircite specimen photo
James St. John · CC BY 2.0 · Commons

Physical properties

Specific gravity
3.53 g/cm3single sourceDana, System of Mineralogy, 6th ed. (1892)
Color
green, yellowsingle sourceDana, System of Mineralogy, 6th ed. (1892)
Luster
pearlysingle sourceDana, System of Mineralogy, 6th ed. (1892)
Cleavage
distinct, perfectDana, System of Mineralogy, 6th ed. (1892)

Chemistry (calculated)

Molecular weight1047.48 g/molcalculated from the IMA formula
Composition (wt%)Ba 13.11%, U 45.45%, O 33.6%, P 5.91%, H 1.92%

Classification

Nickel-Strunz (10th)8.EB.05Wikidata (CC0)
Nickel-Strunz (9th)8.EB.05Wikidata (CC0)
Dana (8th)40.2a.3.1Wikidata (CC0)