In addition to limestone, ore-bearing dolomite is another rock that has determined the economy and appearance of the Olkusz area. It contains nearly 50 valuable elements such as lead, zinc, iron and silver.

Therefore, the displayed ‘Treasures of Olkusz Land’ consist of more than 30 types of minerals that have been excavated in Olkusz mines for ages, such as galenas, sphalerites or markasites.

As a result of chemical processes, they generated various spectacular and colourful varieties. You can see them all in the Olkusz collection.