The Petrographic Laboratory (LAP) has mainly educational and dissemination purposes. It allows to learn how to recognize lithotypes and relate them to their technical characteristics. In the Laboratory there are over 2000 samples of minerals, a unique collection of polished rocks (consisting of over 200 pieces) and about 500 samples of rocks from all over Italy and different parts of the world. In the Laboratory there is also an artificial rock wall on which students can practice geological-structural surveys using instruments such as geologist’s compasses and Barton’s Combs. To complete the geological-technical characterization, students also have sclerometers and a Point Load Test at disposal. Finally, in the Laboratory there is a hydrogeological model, which simulates the flow in multi-aquifer systems in a simplified way through the use of colored fluids.