And why not a proper provenance code for stone and marble !
A recent article on the great website stone-ideas http://www.stone-ideas.com/2014/10/04/geographical-indications-protection-natural-stone/ about why stone should be protected and have a proper code of ethic when it comes to building stone. For to long we have ignore the plea of manufacturer to have a non commercial name to stone so transparency can prevailed ! Man made material are so much better organised from wet cast stone to reconstituted stone or concrete ! We should be more organised with proper labelling !