Szakáll Sándor - Jánosi Melinda: Minerals of Hungary (Topographia Mineralogica Hungariae 4. Miskolc, 1996)

On Rózsa Hill, near Nagybörzsöny, a mineralogically unique hydrothermal bismuth-copper-lead-zinc ore-body was found in Miocene andésites and dacites. The golden age of gold and silver mining in this area was during the 14th and 15th century. During this period Nagybörzsöny became a famous mining town. Later on, in spite of repeated attempts, mining was never successfully reestablished. The best known galleries were named Fagyosasszony, Lower-Rózsa, Upper-Rózsa, Istenáldás, and Ludmilla. Although prospecting continued in this century (even during the last decade), no new mine has opened. Fig. 45 BISMUTH, BISMUTHINITE Fig. 46 SEGNITITE (0.2 mm xl) (6 cm sp) Nagybörzsöny Nagybörzsöny In mineralogy, Nagybörzsöny became famous because it was from an ore specimen found here during the 1780's century that Pál Ki-