Abstract
The range of polymer composite materials filled with fine powders is expanding, including through involvement in production of fillers from mineral raw materials previously not used for these purposes. Such a source of raw materials can be waste of mining industry, as well as minerals already used for other purposes. Such a previously unused source for production of polymer composites are low-carbon varieties of such a well-known mineral as shungite containing a large amount of silicon dioxide. By IR spectroscopy the presence of various functional groups in the initial shungite and toluene extract of this filler was investigated.