... , we are the legal and sole supplier for this black and white Hua'an Jade in the world .Hua’an Jade (G3576 ... .06%Porosity:0.12%Polish degree100Radiation Intensity Grade A black and white raw marble blocks No water , No oil absorption ,neither be stained ... , counter-top , basin , sculpture ,stair , railing ,Irregular products and etc. black and white raw marble blocks (XMD032JWMI) ISO9001 approved