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Mineral resources of Poland> Rock raw materials and others> Feldspar raw materials
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Feldspar raw materials

Deposits of feldspar raw materials represent natural accumulations of various kinds of feldspar and feldspar-quartz rocks rich in alkali (Na2O + K2O equal at least 6.5%). Deposits occur in Dolnośląskie and Małopolskie Voivodeships. The rocks include leucogranites occurring in various parts of the Lower Silesian area i.e. in the vicinities of Strzeblów and in Izera Mts. (Kopaniec vicinities). Other feldspar raw materials are represented by feldspars of porphyry varieties of the Karkonosze granites from the vicinities of Karpniki, Maciejowa and Góra Sośnia in the Jelenia Góra Basin (Sudety Mts.), potassium trachyte from Siedlec and Kwaczała arcose from Wygiełzowa in the Silesian-Cracow region.

Feldspar is one of the major raw material in the ceramic industry. It is used in the form of various powders and feldspar-quartz aggregates in the manufacture of high-class porcelain and bone china, ceramic tiles, sanitary ceramics and enamel materials and in glass industry. Feldspar raw materials are also recovered as by-products in quarrying granites rich in potassium feldspar.

Feldspar raw materials deposits are presented on the map.

Table 1 shows the current state of exploration and development of feldspar raw material deposits.

Anticipated economic resources increased in 2016 by 1.99 million tonnes due to the approving of a new documentation with recalculated resources for Stary Łom deposit – the deposit area was enlarged towards the south and south-west and the horizontal border was lowered.

Economic resources of exploited deposits account for 33% of anticipated economic resources of these deposits. Production of feldspar raw materials increased in 2016 by 11.60 thousand tonnes in relation to the previous year and amounted to 88.14 thousand tonnes (Table 1).

The figure given below shows changes in resources and production of feldspar raw materials in Poland in the years 1989-2016.

The demand for feldspar raw materials remains high in Poland. The domestic production of feldspar is used mainly in the manufacture of ceramic tiles.

Prepared by: Agnieszka Malon