Hydrothermal sulfide mineralization from Skalka in the Havlíčkův Brod ore district (Czech Republic)
Article PDFHydrothermal sulfide mineralization from Skalka in the Havlíčkův Brod ore district (Czech Republic)
In the central part of the Havlíčkův Brod ore district, the remains of historical mining were discovered near the Skalka hill (463 m a.s.l.), 2.4 km SSE of the centre of Havlíčkův Brod, in connection with the construction of new roads in 2022. In the studied material from the rest of mine dumps, mainly common sulfide minerals with a composition characteristic for this ore district (pyrite, Fe-rich sphalerite, arsenopyrite, galena) were found, in association with more rare sulfides, chalcopyrite, pyrrhotite and ullmannite, which had not yet been found there. Tetrahedrite-group minerals were also found in the studied samples, which, based on the new nomenclature, can be classified as tetrahedrite-(Fe) with variable Ag contents and kenoargentotetrahedrite-(Fe). In addition to sulfides, muscovite, clinochlore, fluorapatite, rutile, monazite-(Ce), xenotime-(Y) and probable Y+REE and P+As rich coffinite were determined. In the rare supergene mineralization, scorodite, schultenite, cerussite, anglesite, smithsonite, and calcite were found.
Petr Pauliš, Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9-Horní Počernice; Smíškova 564, 284 01 Kutná Hora
Stanislav Kopecký, Žižkov II/1294, 588 01 Havlíčkův Brod
Zdeněk Dolníček, Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9-Horní Počernice
Jiří Sejkora, Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9-Horní Počernice; e-mail: jiri.sejkora@nm.cz