Mineralpedia Details for Auricupride
Named for the gold and copper in the composition, which in Latin are aurum and cuprum, respectively. Auricupride is a rare mineral that can be found in localities in Russia, the island of Cyprus, Switzerland, Chile, and additional localities in Argentina, South Africa, Australia, the Czech Republic, and Greece. At its Russian localities, Auricupride occurs “in serpentinites as a product of low-temperature ordering and [separation] of Au-Cu solid solution alloys,” and at a Swiss locality it can be found in reduction halos in red beds.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/auricupride.pdf
Auricupride from Zlayoya Gora, Soimon Valley, Chelyabinsk Oblast, Urals Region, Russia
A 0.75mm golden crystal on matrix.
Auricupride from Karabash, Chelyabinsk Oblast', Urals, Russia
Copper colored Auricupride grains less than 1mm, however there are several on this specimen.