The Mineralogy Museum Eduardo Villaseñor Söhl is housed in the former Hacienda de San Matias, just outside Guanajuato's compact historic centre. The collection focuses on minerals, crystals, and mining geology, making it a useful companion to the city's silver-mining history rather than just a specialist stop.
It is best for visitors who want to understand the material side of Guanajuato's mines after seeing the churches, theatres, and steep streets built from that wealth.