“The sample was collected from the Bentomine S.A. quarry (http://www.bentomine.gr/); see also: http://www.ingentaconnect.com/content/schweiz/ejm/2010/00000022/00000006/art00005?token=00571d16334cb31daa6417e41225f40384d57204173487646445051576b34272c5f7b3d6d3f4e4b346e3e8f ”