2199-09ldgcnss ((PROUSTITE, ARSENIC)), $25 MINIMUM BID, St Joachimsthal, Erzgebirge, Bohemia, Czech Republic, 7.5 x 3.5 x 2.5 cm, Cabinet, | |
Old German collection specimen of black Arsenic matrix with several red Proustite crystals. H Deisinger collection. |