Mineral Factbook

Schoepite

(UO2)4O(OH)6(H2O)6IMA symbol: Shoapproved

Schoepite is an oxide or hydroxide mineral with the formula (UO2)4O(OH)6(H2O)6, crystallizing in the orthorhombic system. It has a Mohs hardness of 2.5, a calculated density of 4.819 g/cm3. Its streak is yellow.

Photos

Schoepite specimen photo
Klaproth · CC BY-SA 3.0 · Commons
Schoepite specimen photo
Alberto Salguero · CC BY-SA 3.0 · Commons
Schoepite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Schoepite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemorthorhombic crystal systemWikidata (CC0)
Space groupP 21 c a
Cell (Å, °)a = 14.337, b = 16.813, c = 14.731; α = 90, β = 90, γ = 90
Cell volume3550.88 ų, Z = 8
Axial ratios0.8527:1:0.8762calculated from COD 9004444
Source structureCOD 9004444 (The Canadian Mineralogist, 1996) — 1 of 2 structures

Physical properties

Density (calculated)4.819 g/cm³calculated from COD 9004444
Hardness (Mohs)
2.5single sourceWikidata (CC0)
Streak
yellowsingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight1306.25 g/molcalculated from the IMA formula
Composition (wt%)U 72.89%, O 25.72%, H 1.39%

Classification

Nickel-Strunz (10th)4.GA.05Wikidata (CC0)
Nickel-Strunz (9th)4.GA.05Wikidata (CC0)