A frequently recurring problem in the extraction of mineral resources (especially heterogeneous mineral resources) is the rapid operative determination of the extracted quantity of raw material in a surface quarry. This paper deals with testing and analyzing the possibility of using unconventional methods such as digital close-range photogrammetry and terrestrial laser scanning in the process of determining the bulk density of raw material under in situ conditions. A model example of a heterogeneous deposit is the perlite deposit Lehôtka pod Brehmi (Slovakia). Classical laboratory methods for determining bulk density were used to verify the results of the in situ method of bulk density determination. Two large-scale samples (probes) with an approximate volume of 7 m³ and 9 m³ were realized in situ. 6 point samples (LITH) were taken for laboratory determination. By terrestrial laser scanning (TLS) measurement from 2 scanning stations, point clouds with approximately 163,000/143,000 points were obtained for each probe. For Structure-from-Motion (SfM) photogrammetry, 49/55 images were acquired for both probes, with final point clouds containing approximately 155,000/141,000 points. Subsequently, the bulk densities of the bulk samples were determined by the calculation from in situ measurements by TLS and SfM photogrammetry. Comparison of results of the field in situ measurements (1841 kg∙m⁻³) and laboratory measurements (1756 kg∙m⁻³) showed only a 4.5% difference in results between the two methods for determining the density of heterogeneous raw materials, confirming the accuracy of the used in situ methods. For the determination of the loosening coefficient, the material from both large-scale samples was transferred on a horizontal surface. Their volumes were determined by TLS. The loosening coefficient for the raw material of 1.38 was calculated from the resulting values.

The article presents the first description of a complete and continuous series from berthierite to garavellite sulphosalts in the Western Carpathians. Berthierite is a common main or accessory phase of Sb mineralizations in the Western Carpathians, and occurs at many localities and ore deposits as well. On the other side, garavellite or Bi-rich berthierite is a relatively rare accessory phase. The highest Bi content in garavellite reaches up to 38.04 wt. % which represents 0.90 apfu, and its crystallochemical formula can be written as Fe_0.97Sb_1.07Bi_0.90S_3.98. Raman band shifts were observed in the isomorphic berthierite–garavellite series. Garavellite occurs in the younger stages of sulphidic mineralization, and associates with tetrahedrite, berthierite, Bi-chalcostibite, Sb-bismuthinite, Bi-stibnite, ullmanite and cinnabarite. It creates irregular grains and veinlets in pre-existing tetrahedrite, or forms myrmekite intergrowths with chalcopyrite in tetrahedrite. Bi content in chalcostibite is up to 0.20 apfu. Besides the tetrahedrite, pre-existing sulphosalts are the members of the tintinaite–kobellite series, Bi-jamesonite and bournonite. The Sb/(Sb+Bi) ratio of minerals of the tintinaite–kobellite series varies from 0.37 to 0.80. The maximum content of Bi in jamesonite is up to 1.22 apfu. A vertical zonation at the ore vein body (mining levels 6 / 180 a.s.l., 8 / 80 a.s.l., 10 / 20 b.s.l.) is represented by the Sb decrease along with the Bi increase with increasing depth. Bi content continuously decreases during the older ore mineralization stage and Sb increases at the younger mineralization stage. Both of the stages have been enriched by Sb as well.

Vibrations caused by blasting works have an impact not only on buildings but also the internal environment of the buildings. If these buildings are situated in the surroundings of quarries, the citizens can perceive these vibrations negatively. By applying an appropriate millisecond timing interval, it is possible to lower the intensity of vibrations to the levels that the citizens will not perceive as negative effects inside the buildings. The limit values for this vibration intensity have not been defined to date. For the protection of the building from the vibrations, normative values of the particle velocity and frequency were determined. Hygienic standards for the inhabitants of the housing were applied, which assessed the impact of the vibration on humans through the measurement of the vibration acceleration in the housing. In this article, the results of the research carried out in Trebejov Quarry are presented. The experimental blasts carried out in Trebejov Quarry proved that the reduction in the vibration intensity under the value 2 mm.s⁻¹ led to the satisfaction of the inhabitants.

Mineral deposits are essential for the economic, technological and social development. However, to enable them to play an appropriate role in the process of sustainable development, they need to be safeguarded in a comprehensive and systemic manner in the same measure as other elements of the environment. The practice of securing access to areas where the mineral deposits can be found is based on the statement that they can be extracted only in places where they occur. This fact defines the type and scope of instruments for safeguarding prospective deposit areas of minerals and their documented deposits. These issues gained in significance in the EU level in recent years however views on this subject across the Member States still vary. The paper subjects instruments of mineral deposit safeguarding used in Poland, Slovakia and Czechia to the analysis and multi-criteria comparative assessment. It recommends their division into the conceptual, legal, spatial planning and economic ones. As a result of studies, similarities and differences in the approach to mineral deposit safeguarding in individual countries are shown, indicating good practices and suggesting possible changes. The analysis revealed many analogies in actions aimed at mineral deposit safeguarding in individual countries, however the assessment of their effectiveness and implementation points at the necessity of taking further steps to increase deposit safeguarding.

Epigenetic hydrothermal quartz veins with mineral associations of Bi-bearing sulfides and sulfosalts with Bi-tellurides penetrate the rock environment of the Gemerská Poloma talc-magnesite deposit in the Central Western Carpathians in Slovakia. The main exploited mineral is talc. The newly discovered occurence of quartz-sulfidic veins within the talc-magnesite deposit was studied in detail. The association of sulfosalts and sulfides is represented by the dominant minerals of the tetrahedrite group, bournonite, pyrite, cobaltite, and arsenopyrite together with less common to rare galena, minerals of the aikinite-bismutinite group (Naik 0.3 – 38.6—bismuthinite-pekoite-gladite), native bismuth, nuffieldite, cosalite and jonassonite. Later fluid contributions led to the formation of tellurides, which are represented by rare hedleyite and tetradymite associated with ikunolite. Mineral associations indicate that the deposit was invaded by multiple phases of mineralization. An open system between the granite and the talc carbonate body is indicated by the formation of zavaritskite, which occurred as a result of low-temperature F-rich fluids. Bismuth and fluorine are most probably from the underlying granite, but source of Au, Co, Ni and Te is not clear. Chemical and heat exchanges between the granite and the overlying carbonate body along the shear zone resulted in sulfide mineralization that was dominantly controlled by hydrothermal activity.