Internationale Beurs Zwijndrecht

Twice a year the Geode association holds a mineral fair at the Develstein College in Zwijndrecht. Some 60 to 70 exhibitors give a good look at the world of minerals, fossils and gemstones: rough minerals, jewellery, fossils, micromounts, books and a large choice of cut stones for goldsmiths.

The association has an information stand, at a special stand children can cut a stone themselves for €1, and at an identification stand experts examine the stones you bring.

Admission: €4, children up to 16 and over-65s €3.