- Oploca Vein System (Oploca mine), Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy, Argentina
- Miniature, 3.5 x 3.2 x 1.0 cm
- Ex. Paulo Matioli; University of Salzberg
Dark gray, fine-grained sulfide matrix with scattered vugs festooned with well-formed, brownish-gray, metallic crystals of hocartite. Label from the Institute for Mineralogie and Petrography at the University of Salzburg. Ex. Institute for Mineralogy and Petrology, University of Salzberg and Paulo Matioli collections.