Tin is used for production of a wide variety of useful alloys, being most commonly alloyed with copper. Tin is also used for coating steel and other metals to prevent corrosion. Tin-plated steel cans and containers are widely used for food preservation but that application decreases due to growing replacement of tin with other materials.
Tin is mainly extracted from its base compound, usually cassiterite (SnO2), occurring in the form of primary or secondary accumulations.
In Poland, tin ores occur in two deposits, Gierczyn and Krobica, in the Stara Kamienica Lower Paleozoic Schist Belt in the Sudety Mts. Tin resources of these deposits were classified as anticipated subeconomic because of their size and were estimated at 4.6 million tonnes of ore with Sn content about 0.5 % at the average. Perspective resources of tin ore in the whole area of the Stara Kamienica Schist Belt were estimated at about 20 million tonnes, with the content of metallic tin of about 100,000 tonnes.
Demand for tin in Poland is met by import. In 2010 import of tin amounted to 3.05 thousand tonnes, mainly as tin non-alloys. Export of tin amounted to 450 tonnes (also mainly tin non-alloys).
- B - for solid minerals - mine in building process, for fuels - prepared for exploitation or trial period of the exploitation
- E - exploited
- G - underground natural gas storage facilities
- M - deposit crossed out of the annual report of mineral resources during analized period
- P - deposit covered by preliminary exploration (in C2+D category, for fuels – in C category)
- R - deposit covered by detailed exploration (in A+B+C1 category, for fuels – in A+B category)
- Z - abandoned deposit
- T - deposit exploited temporarily
- K - change of the raw material in deposit
Prepared by: Stanisław Z. Mikulski