Eric, Attached is the stone spec. We did state in an addendum that it could be Pennsylvania Blue Stone in lieu of the Chinese Blue/Green Stone. Please let me know when you all would like to have a look at the mock-up. Thanks, Clay Barnett, P.E. Town Engineer Town of Addison 16801 Westgrove Drive Addison, TX 75001-2818 Office: (972) 450-2857