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Formula: Cu(C3N3O3H2)2(NH3)2
Organic compound
Crystal system: Triclinic
Specific gravity: 2.020 calculated
Hardness: 1
Streak: Pale violet
Colour: Violet
Luminescence: No fluorescence under UV
Solubility:
Common impurities: Zn
Environments
Occurrence:2012
Localities
At the type locality, Pabellón de Pica, Chanabaya, Iquique, Iquique Province, Tarapacá, Chile, joanneumite
was found as microcrystalline aggregates up to 2 mm in size, formed in cracks in
gabbro by the convergence of solutions derived from the oxidation of
disseminated copper mineralisation and nitrogen-rich guano in an arid region.
Associated minerals include salammoniac,
dittmarite, möhnite,
gypsum, chanabayaite and
antipinite
(HOM).
Joanneumite from Pabellón de Pica -
Image
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