ncat JP2592 Proustite, Jachymov (St Joachimsthal), Jachymov District (St Joachimsthal), Krusne Hory Mts (Erzgebirge), Karlovy Vary Region, Czech Republic October 11, 2019 Steve Czech Republic Ex Jack and Dawn Leach Collection
Europe Greece 9054 JP2234 Proustite, Plaka Mines, Plaka, Lavrion District Mines, Lavrion District (Laurion; Laurium), Attiki Prefecture (Attica; Attika), Greece October 11, 2019
Colorado North and Central Americas United States ncat JP1566, Proustite, Sphalerite, Chalcopyrite, Pyrite, Galena, Wyoming Mine, Gilman District (Battle Mountain District; Red Cliff District), Eagle Co., Colorado, USA September 23, 2019
Europe Germany ncat JP3531 Xanthoconite, Proustite, Alte Hoffnung Gottes Mine, Kleinvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany October 11, 2019
