Z. Naziemiec, P. Pichniarczyk, D. Saramak
Chalcedonite is a natural siliceous sedimentary rock. The only chalcedonite mine located in Poland is in Inowłódz, where an open cast exploitation of “Teofilów” deposits is carried out. Chalcedonite mineral from this deposit is characterized by high changeability in lithology and conciseness. [Tchórzewska D. 1997]. Chalcedonite, as an unique raw material he has been the subject of many studies. Its multiple applications include road and building industry, sanitary engineering (filtration material in wastewater treatment and drinking water purification) and cement industry. This article highlights the particularly significant problems of its processing, connected with separation of various density fraction in a jig and the most important current and new directions for its utilization as a component of concrete mix.