Nickel ore deposits occur in the Lower Silesian region (map). These are deposits of nickel oxide ores formed in result of weathering of serpentinized mafic and ultramafic rocks. Exploitation of the major nickel ore deposit at Szklary in the vicinities of Ząbkowice Śląskie was phased out in 1983 as uneconomic.
The anticipated economic resources of nickel ores increased significantly in 2014 due to the documentation of new Szklary 1 deposit. This deposit was allocated from Szklary-Szklana Góra deposit. Therefore, the anticipated economic resources (B and C1 category) amounted to 17.21 million tonnes of ores with metallic nickel content of 125.0 thousand tonnes (limiting content of Ni in the deposit is 0.8 %). The ore resources of the Grochów deposit were classified as anticipated subeconomic.
Nickel is also one of accompanying metals in copper ores from the Fore-Sudetic Monocline. The copper deposits yield about 64.31 thousand tonnes of nickel which is recovered in technological processes as nickel sulfides. In 2014, the processing of copper sulfide ores gave 2,756 tonnes of nickel sulfides
Prognostic resources of Ni-layer silicate type ores in small and separate lenses in serpentinite waste around the Sowie Mts. Block gneisses (Lower Silesia) are estimated for ca. 25 thousand tonnes(1).
Prepared by: Stanisław Z. Mikulski
(1)Mikulski S.Z., 2011 - Rudy niklu. In: Bilans perspektywicznych zasobów kopalin Polski wg stanu na 31 XII 2009 r. (ed. S. Wołkowicz, T. Smakowski, S. Speczik): 107-109. PIG-PIB, Warszawa.