... an Jade also called Dargon Painting of Huaan , major components are quartz ,feldspar, diopside , tremolite , actinolite and etc , which is ... stone in China , we are the legal and sole supplier for this black and white Hua'an Jade in the world .Hua’ ... 0.12%Polish degree100Radiation Intensity Grade A black and white raw marble blocks No water , No oil absorption ,neither be stained , easy to ...