1. Introduction
In the first decade of the 21st Century and especially after accession of Poland to the European Union, an intensification of transport infrastructure (especially roadways), as well as building construction industries has been observed. This has resulted in an increasing demand for rock minerals (sands and gravels and dimension and crushed stones). Diversified and large reserves of these mineral resources were beneficial for the economy and allowed to satisfy most of the demand from national sources. On the other hand, increased demand for these products increased the scale of environmental and social conflicts associated with intensification of mining and road transport. Resources of crushed stones, in particular magmatic and metamorphic rocks are located predominately in SW of Poland, mainly in the Dolnoslaskie government. This region accounts for approximately 50% of total production of crushed stones in the country each year and for nearly 99% of magmatic and metamorphic dimension and crushed stones. Rock minerals, such as clay raw materials are also mostly associated with the Dolnoslaskie region. Among other rock minerals, clay minerals for building ceramics constitute approximately 10% of national production and 6% of reserves. The distribution of sand and gravels resources and their mining in Poland is relatively even. Production of these minerals in the Dolnoslaskie government oscillates around 10% of total output. Location of rock minerals deposits in the Government is shown in Fig. 1.