You are here: Home  » discover» Geology» Types of Stone» Radiolarite


Red and green stones, edged and criss-crossed by calcite veins - radiolarite bring colours to grey gravel banks!
To get to the location of emergence of these rocks one has to use a diving robot. In deep sea areas (3,500 – 5,000m) of the Pantalassan Ocean it emerged from radiolarian skeletons 150 million ago.  

Radiolarians are single-celled organisms. Their inner skeleton consists of silica crystals, which unlike limestone compounds do not dissolve, even in such a depth.

Radiolarites are hard rocks. During the Stone Age it was used to make tools such as arrowheads.

» Back

Events Calendar

All events at a glance ...

To the calendar