Аннотация:Article sums up some results of development in 20 years of existence of the WWW-MINCRYST information-calculation system (ICS) intended for work with crystalline structures of minerals and their synthetic analogs and assesses the prospects for further development. The main components of the ICS are the database (more than 10,200 records for more than 4280 unique phases), equipped with a complex of search and information selection tools, multimedia presentation facilities (interactive structures and spectra), spectral information processing capabilities, cross-reference generation tools.