Category Organic mineral Crystal system Triclinic | Formula
(repeating unit) Cu(C3N3O3H2)2(NH3)2 Space group P1 | |
Crystal class Pinacoidal (1)
(same H-M symbol) Unit cell a = 5.042, b = 6.997
c = 9.099 [Å]; α = 90.05°
β = 98.11°, γ = 110.95° | ||
Joanneumite is the first recognized isocyanurate mineral, with the formula Cu(C3N3O3H2)2(NH3)2. It is also ammine-containing mineral, a feature shared with ammineite, chanabayaite and shilovite. All the minerals are very rare and were found in a guano deposit in Pabellón de Pica, Chile.
References
Joanneumite Wikipedia(Text) CC BY-SA