The tin-tungsten Krásno ore district near Horní Slavkov (Slavkovský les area, western Bohemia) belongs to the most important areas of ancient mining in the Czech Republic. The exceptionally rich and variable mineral associations, and the high number of mineral species, make this area one of the most remarkable mineralogical localities on a worldwide scale. The present paper reviews the data on geological setting of the ore district, individual ore deposits and mining history. Horní Slavkov and Krásno were known as a rich source of exquisite quality mineral specimens stored in numerous museum collections throughout Europe. The old museum specimens are often known under the German locality names of Schlaggenwald (= Horní Slavkov) and Schönfeld (=Krásno). The megascopic properties and paragenetic position of selected mineral classics are reviewed which include arsenopyrite, fluorapatite, fluorite, hübnerite, chalcopyrite, carpholite, cassiterite, quartz, molybdenite, rhodochrosite, sphalerite, topaz and scheelite.

This paper presents results of study of supergene minerals occuring at the Huber stock and Schnöd stock in the Krásno Sn-W ore district near Horní Slavkov (Slavkovský les area, Czech Republic). The mineralogical research is based on X-ray powder diffraction, electron microprobe analyses, optical and electron microscopy. The paper includes encyclopaedia-type presentation of the identified mineral species. The role of late hydrothermal, supergene, sub-recent and recent processes in the formation of minerals and their associations is discussed.

This paper presents the existing and newly obtained information on supergene minerals of the Horní Slavkov uranium ore district. Mineralogical studies confirmed occurrences of the following minerals: