Dobšiná, as one of the most important mining towns in Slovakia, is located about 26 km NW from Rožňava in Slovak Rudohorí.
Local red veins are among the most varied in terms of mineralogical composition.
Several types of mineralization have been identified in relatively small areas. They were containing Cu (Gavel, Buchwald, Langenberg, Himmelskorn, Hirschkohlug and others) containing Hg (Čuntava, Zinopelkamm) containing Bi (Hirschkohlung) and Ni-Co content, which meant the biggest boom for Dobšin.
These are located in several places around Dobsine (Zemberg, Gugl, Martini, Tešnárky and other minor occurrences).
In addition to these red veins, there are bodies of metasomatic siderites and ankerites. And last but not least, a large, but now depleted deposit of chrysotile asbestos. This was exploited by surface fracture.
At the end of the 19th century, the Altenberg, Massorter and Biengarten quarries were operating, where metamorphic Fe - ers were used.
Some metasomatic bodies did not surface. They were mined under the underground system of the Dobšinská heirloom, deposit Fe Georgi, Coburg. Siderite ore veins with Ni-Co mineralization (lived by Martini and Tešnárky) were also fed by this galley.
The Dobšinská heirloom began to be shattered in 1851 from the Steinseifen valley and reached the final length of 1872m in 1902. It reached the boundary of the Biengarten mining field.
The mining of Ni-Co ores, which Sas Johan Gottlieb Schon pointed out in 18th century, was of the greatest importance for Dobsin.
At this time Dobšiná was the largest producer of Ni-Co ore in Europe.
The red veins appeared in the two most important centers, namely Zemberg and Gugl.
The bearing was minted by a large number of mining works (Maximilián, Karol, Fridrich, Samuel, John, Pavol, Jozef, Langenberg, Jörmény, Upper, Middle and Lower Therese, Gothard and a number of smaller galleries). The vines reach max. 1500m in length and their power does not exceed 3m.
The most important lanes are North, Main and South (Zemberg district) and Terzie I and Terézia II (Gugl district).
In the top portions of these veins (Langenberg, Yorumen), Cu (chalcopyrite and tetrahedrite) dominated the Ni-Co minerals. The volume of Ni-Co minerals increased in depth.
The most widespread Ni minerals were gersdorffit, to a lesser extent Ni-skutterudite with Co content (XX to 5 cm), nickelin (Powder and asbestos quarry), pararamelsbergit (Tešnárky), quite often found chalkopyrite, arzenopyrite (XX to 3cm, Amalias), pyrite, tetraedrite, siderite, ankerite, specularite, sulfosol Bi-Cu (Hirschkohlung), bizmut (Hirschkohlung), marcasite, lollingite and others.
Baritones, quartz, tourmaline (fossil), fuchsite and secondary minerals Ni-Co (annabergite and erythrit), azure and malachite (Himmelskorn), gypsum, various forms of aragonite and others were found in the non-minerals. In the asbestos quarry there were found nice parietal aggregates of chrysotile, crystals of andradite, aragonite, and as interesting special agates were found.
The current mineral picking possibilities in Dobšin are very poor, the vast majority of the galleries are overwhelmed and, in a bit of luck, they can find the mentioned minerals in the asbestos quarry.
The Karol desert would deserve more attention because it is essentially the only one accessible in the Zemberg district with a nice stone reinforcement, which means it was a significant drainage gutter.
The reconstructed portal would be such a small symbolic homage to the Dobšinský mining. Good God!
https://translate.google.com.au/tra...sk/clanky/dobsina-tazba-rud..html&prev=search
(20min delay)