The geological exhibition entitled "The geo-history of Hungary" represents the geological events of a long period.

The exhibition demonstrating the history of the Hungarian geology is arranged in the stateroom of the Institute.

Those minerals are liable to fluorescence which have some defects in their crystal-lattice and the places of defects are filled in by metal atoms. These metal atoms are ready to interact with ultraviolet radiation, their electrons going to higher energy level during to radiation and emitting the fluorescent light when falling back to the original level after the radition has been completed.