Acta Musei Moraviae

Mineral assemblage of alpine-type veins from Templštejn near Jamolice, western Moravia Prehnite- and zeolite-bearing Alpine-type veins penetrate metadiorite dykes in serpentinite. Mineral paragenesis and discussion on its genesis are presented....

Molybdenite-pyrite ore mineralization in quartz veins and greisenized granite at Nová Bystřice near Jindřichův Hradec Revision of mineralogical situation of ore mineralization in granites at Nová Bystřice near Jindřichův Hradec confirmed the presence of molybdenite-pyrite mineralization. The local pyrite mined in the 17th century was used as a source of...

Occurence of rutile in deluvial sediments at Dobrá Voda near Velké Meziříčí, Moldanubian zone Occurrence of rutile in area village of Dobrá Voda near Velké Meziříčí (western Moravia) is one of the most significant localities in Moravia. Its findings come from deluvial Quaternary sediments developed on weathered biotite gneisses of...

Aragonite from Cu ore deposit La Profunda mine, Cármenes, León (Spain) In the historic mine La Profunda mine (Spain) copper and cobalt ores were mined from Roman times. Besides the source ore mineralization (chalcocite, bornite, tennantite, chalcopyrite) in sedimentary altered (dolomitized) Carbonaceous limestones, a massive aragonite with zonal texture was...

Hydrothermal silver-bearing Pb-Zn mineralization in Moldanubian Pluton near Dačice and Slavonice Small deposits of silver-bearing base-metal ores have been mined in the past along the eastern margin of Central Moldanubian Pluton, especially in the 16th century. However, their production was insignificant, and there was not much information about mining at...

Pseudomalachite and descloizite in supergene mineral assemblage from Krucemburk (Czech Republic) The locality Krucemburk (14 km N from Žďár nad Sázavou) is well known by its historical occurrence of secondary Cu-phosphate pseudomalachite Cu5(PO4)2(OH)4. A new revision of supergene minerals confirmed pseudomalachite while other polymorph (reichenbachite, ludjibaite) were not identified. Pseudomalachite...

W-, Nb-, Ta-, and Fe-rich brookite from pegmatite near Bobrůvka, Strážek Moldanubicum (Bohemian Massif, Czech Republic) Anatase, brookite, and rutile have been identified in small cavities along with albite, muscovite, tourmaline (Mg-rich schorl) and fluorapatite in pegmatitic material stored in the depositories of the Moravian Museum in Brno and originating...

Large almandine porphyroblasts from Senorady, western Moravia Large garnet crystals (porphyroblasts) occur in migmatized biotite paragneiss near Senorady (Moldanubian Zone, Western Moravia). In their chemical composition prevails almandine komponent (Alm68–72 Sps3–10 Prp16–22 Grs0–6 Adr1–6). Only weak diffuse zonation (Mn-rich core and Mg-rich rim) and inclusions of quartz, ilmenite, apatite and...

Pocket minerals from simple pegmatites and associated muscovite veins of Strážek Moldanubicum (Bohemian Massif, Czech Republic) Simple anatectic pegmatites with common pockets lined with crystals of smoky quartz, K-feldspar, albite, muscovite, zoned black tourmaline (schorl, oxy-schorl, foitite, dravite, magnesio-foitite) and common to rare accessory minerals – fluorapatite, garnet, cordierite to...

Silver and gold in galena ores from base-metal vein deposits in Bohemian Moravian Highlands Galena-rich ores from vein base-metal deposits in the Bohemian-Moravian Highlands were analyzed for Ag and Au. Relatively high quality of ores was confirmed in the Havlíčkův Brod ore district with contents of Ag exceeding 1000 ppm...

Mineralogy of magnetite-grunerite-siderite ores in Radoškov (Bílý potok Unit, Svratka dome, Moravicum) Metamorphic iron mineralization was documented in an abandoned adit east of Radoškov, Czech Republic. Siderite-rich ore with magnetite, amphibole asbestos, chlorite and small amounts of pyrite occur in chlorite-muscovite and muscovite-biotite phyllites (Svratka Dome, Moravicum). Siderite associated with...

Mineral assemblages with berthierite in base-metal ores at Jitkov near Česká Bělá (Havlíčkův Brod ore district), Moldanubicum Silver-rich base-metal veins near Česká Bělá (Havlíčkův Brod ore district) were exploited in the Middle Ages. Fragments of ore-bearing quartz vein were found in abandoned dumps at Jitkov. Arsenopyrite and pyrite among ore...

Topography of historical mines and ore mineralizations in area of the Bílý potok, Western Moravia Remnants of historical mines for iron- and base-metal ores were re-investigated among villages Javůrek, Maršov, Svatoslav, Přibyslavice and Lesní Hluboké, in area 20 km NW from Brno (Czech Republic). The mines are situated at the...

Native silver from Borovec (Štěpánov ore district) Silver mining activities at Štěpánov ore district date back to 13th century. Besides the major ore minerals, the silver-bearing galenite with inclusions of freibergite, and the silver-bearing chalcopyrite, rare presence of native silver was encountered on dumps close to the shallow shaft Josef...

Recent efflorescences of Fe sulphates in a waste piles at Dlouhá Ves near Havlíčkův Brod (Czech Republic) The water-soluble sulfates: rozenite, melanterite, halotrichite, gypsum, rhomboclase, epsomite and alunogen were found in the waste piles of polymetal deposits in Dlouhá Ves near Havlíčkův Brod (Czech Republic). Ferrous sulfates, which are stable...

New minerals found in regions of Moravia and Silesia between 1985 and 2009; a review Since the last topographic mineralogy review in 1985, the number of mineral species described from Moravia and Silesia rose significantly, especially due to more freqent use of advanced analytical techniques, e.g. EMP or powder XRD....

Pyromorphite from Jihlava ore district (Czech Republic) The supergene mineral assemblage of the Jihlava district, where Pb-Zn-Ag ores were exploited in the medieval age, is characteristic by pyromorphite occurrences. Pyromorphite forms yellow-green to green hexagonal crystals up to 1 cm in size and sometimes also brown or white, needle-like aggregates...

Nordenskiöldine CaSnB2O6 from the locality Kozlov near Nedvědice, new rare accessoric mineral for Nedvědice marbles Very rare mineral of Europe – nordenskiöldine CaSnB2O6 – was found in Sn-rich calc-silicate assemblage (tin skarn) of Nedvědice marbles near Kozlov (4 km N from Nedvědice, western Moravia). It forms rare euhedral grains approx....

Scorodite FeAsO4·2H2O from Jezdovice near Třešť In the Jezdovice area (Jihlava ore district) the silver ores were exploited from the mid- 13th century up to the 18th century. The locality is hosted by cordierite-biotite gneisses of Moldanubian zone. The deposit is formed by hydrothermal mineralization, including quartz veins with Fe-sphalerite,...

Mineralogy, petrography and geology of the Nedvědice marbles, Svratka Crystalline Complex; a review Nedvědice marbles occur in a narrow belt situated along the eastern and northeastern margin of the Svratka Crystalline Complex (Moldanubian Zone). Elongated bodies of calcite marbles up to 150 m long and 40 m thick, with abundant...

Moldavite-bearing sediments near Lukov in the vicinity of Moravské Budějovice, Western Moravia Between 1998–2005 several moldavites have been collected in two new localities near Lukov. They are olive-green in colour and have angular to subangular shape with lustrous and mat surface. The chemical composition of one sample shows similarity to...

Supergene minerals from Ag-Pb-Zn-Cu base-metal historical ore deposits at Českomoravská vrchovina Highlands, Czech Republic; A review The work presents a brief characterization of the known oxidic minerals of the supergene zone, especially from Moldanubian Zone, Moravosilesian, Bohemian Massif. Simple ore mineralizations consist predominantly of pyrite, sphalerite, galena, arsenopyrite, and also...

Pb-Zn mineralization near Horní Loučky in vicinity of Tišnov Pb-Zn mineralization Horní Loučky near Tišnov is described. Simple mineral assemblage with sphalerite and galena is disseminated in quartzite, which replaced of marbles of the Olešnice Unit, Moravicum....

Hydrothermal mineralization with anatase from Nemojov near Pelhřimov (Czech Republic) The quartz vein with anatase cuts discordantly biotite paragneisses and HT/LP cordierite migmatites of the Pelhřimov complex (Moldanubian zone). It has ENE-WSW direction with a steep slope and its average thickness is 10 cm, in the central part up to...

New finds of zeolite mineralization from the historical locality Janovice (Moravia, Czech Republic) In 2019, new finds verified the occurrence of zeolite mineralization from the historical locality Janovice (Rábl quarry) and in its vicinity (occurrence in the field above the quarry). Until then, the locality was generally considered extinct. The...