Public guided tour of the exhibition FEURIGER URSPRUNG

Even in antiquity, agate was highly valued as a gemstone. This variety of the ubiquitous mineral quartz (the second most common mineral in the Earth's crust) is microcrystalline and typically fills cavities in volcanic rocks in the form of geodes and amygdales. What makes it a gemstone is its high hardness and durability, but especially its distinctively multi-colored, banded appearance, which is particularly enhanced when cut and polished. However, it is not only used as a gemstone, but also for technical applications (e.g., mortars). The guided tour of the exhibition invites you to learn more about agate.

Admission: 5 euros, reduced 4 euros