Uranophane

Image

Uranophane-alpha (light yellow radiating spheres) and Uranophane-beta (dark yellow, fan-like, thick needles) on Granite from Miedzianka in Krkonoše near Janowice Wielkie in Poland (Width: 11.5 mm)

© Photo by F. Rohowski (via Wikimedia Commons), CC-BY-SA 3.0

Properties

Formula Ca(UO2)2(SiO3OH)2·5H2O
Abbreviation Urp-α
Classification Uranophane (group)
IMA Status Grandfathered (pre-IMA), 1853
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials Parauranophane, Uranophane-α
Crystal symmetry Monoclinic, Point group 2, Space group P21 (#4)
Tags Hydrated , Hydroxide , Mineral, Uranyl , Silicate

Composition

Element Atoms
Ca 1
Si 2
U 2
H 12
O 17
Total: 34