The proven deposit of "Imperial Jin Tan" are over 500 million m3 with fine quality and all kinds of varieties at present. Thanks to its noble color and extraordinary texture , especially the splendid luster after polishing, it can be used as high-quality decorative materials applicable to commemorative architecture or building needing higher -ranking decoration to be imposing and magnificent. Hotels, exhibition halls, cinemas, shopping malls, libraries, airports, and walls, pillars, floor, stairs and so on.