Many of the CHARROCK Research Group belong as well to the IUGS working group Heritage Stones Subcommission. This group used to be a Task Group within the IUGS, but has been upgraded as subcommission at the IGC in Cape Town 2016.
The following link will take you to the poster presented at the 2012 International Geological Congress, as part of the displays at the IUGS Booth:
To learn more on the Working Group and the Global Heritage Stone Resource project, visit:
