Uricite
Natural uric acid — a soft yellowish organic mineral from guano deposits.
Intro adapted from Wikipedia (CC BY-SA).
Uricite is an IMA-recognized mineral species in the organic mineral class, with the chemical formula C₅H₄N₄O₃.
It crystallizes in the monoclinic crystal system (space group P2_1/a).
Key properties: Mohs hardness 1.5; specific gravity 1.851; optically biaxial.
IMA symbol Uri, IMA status: approved, named in 1973.
Formed in guanos.
It is found associated with Biphosphammite, brushite, syngenite (Dingo Donga Cave, Australia).
The name refers to its composition, anhydrous uric acid.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
Browse more U minerals or help write this entry.