rough granite blocks importers 1)Asia Champion in 3D mosaic 2)Since 1996 , ISO9001 3)Quarry Owner 4)Famous brand, over 20 Product InfromationHua'an Jade also called Dargon Painting of Huaan , major components are quartz ,feldspar, diopside , tremolite , actinolite and etc , which is recrystallized after silicification . It's origin issea facies sedimentary rocks (about 248 millions years ago ) , ...