Ferenc Š. & Dzúrová M., 2015: Minerálne fázy berthieritovo-garavellitového radu z lokality Klenovec-Medené (Slovenské rudohorie – veporikum), Slovenská republika. Acta Geologica Slovaca, 7, 1, 29–36. (in English)


Mineral phases of the berthierite-garavellite series from the Klenovec-Medené occurrence (Slovenské Rudohorie Mts. – Veporic Unit), Slovak Republic

Minerálne fázy berthieritovo-garavellitového radu z lokality Klenovec-Medené (Slovenské rudohorie – veporikum), Slovenská republika


Štefan Ferenc & Miroslava Dzúrová

Department of Geography and Geology, Faculty of Natural Sciences, Matej Bel University, Tajovského 40, 974 01 Banská Bystrica, Slovak Republic; stefan.ferenc@umb.sk

Abstract

The Klenovec-Medené occurrence is an example of the Alpine carbonate and quartz-sulphidic mineralization in the Veporic Unit, Slovakia. Locality lies in western part of the Slovenské Rudohorie Mts., 25 km to NNW from the Rimavská Sobota district city. Mineralization is bound to the shear zone, located in biotite-albitic paragneisses of the Klenovec Complex. In frame of the quartz-sulphidic stage of vein filling development, there was found next-to complete transition from Bi enriched berthierite (formula: Fe0.96(Sb1.81Bi0.19)2.00S4.01) to Sb-rich garavellite with formula: Fe0.96(Sb1.48Bi0.53)2.01S4.03. They were found in tetrahedrite aggregates, near by the interfaces with chalcopyrite, in association with arsenopyrite and gold. Berthierite-garavellite series minerals form two morphologic types: I) elongated/isometric grains and veinlets in tetrahedrite; II) irregular aggregates/veinlets, as a part of myrmekite intergrowths with chalcopyrite and tetrahedrite. Association and microstructural relationships of berthierite and garavellite suggest, that these originated by precipitation from Bi enriched residual solutions of tetrahedrite crystallization, or/and from solutions of slightly younger hydrothermal process.


Key words: Western Carpathians, Slovenské rudohorie Mts., Veporic Unit, Klenovec, sulphidic mineralization, berthierite, garavellite


Manuskript doručený: 2014-10-17

Manuskript revidovaný: 2015-03-26


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