Natural stone for cultural heritage: local resources with a global impact, Prague (Czech Republic), September 19-22, 2017. Details at:

First circular Congrress 2018-1 El Jadida/Marrakech, Morocco, 2024 March 2018

Global Stone 2018 in Brazil. See details at:

Resourcing Future Generations, Vancouver, BC, Canada, June 2018

Heritage Stones at the University, Salamanca, Spain, 2-4 October, 2018