Brown arsenuranospathite with yellow acicular uranophane-alpha from Grube Krunkelbach (Krunkelbach Mine), Menzenschwand, Germany (Field of view: 4.6 mm) — Photo: BLFrank · CC BY-SA 4.0
Uranophane-α
Uranophane-α is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca(UO₂)₂(SiO₃OH)₂·5H₂O.
It crystallizes in the monoclinic crystal system.
IMA symbol Urp-α, grandfathered status — known before the IMA’s founding, named in 1853.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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