Natural environment erosion experiments begun

On 29.9.2014, a set of PRESIOUS stone samples were placed at an exposed location at the Nidaros Cathedral Workshop in Norway. A large number of physicochemical measurements were performed on the stones, which will be left to erode in a natural environment for approximately 1 year, when the measurements will be repeated. The differential measurements will help us understand the nature of the erosion process.

Erosion experiment photo