Romanèchit - La Providencia, Sey, Susques, Susques, Jujuy Province, Argentina
 ex. Günther Haller
 Collector Günther Haller spent a large part of his life in Argentina. For this reason, we regularly offer numerous rare items from Argentina.

 A fantastic specimen of the manganese mineral Romanechite from Argentina! The sintered specimen has a spherically shaped surface with a beautiful black sheen!