The way to distinguish white copper from Tibetan silver and Miao silver is that the latter two are absolutely white in the proportion of abnormalities and are closer to silver in appearance. However, the aluminium white copper in contemporary technology is equal to the color of Tibetan silver and Miao silver, even whiter, but with higher hardness and lighter proportion. At present, pure white copper and even aluminium-white copper have not been used in Tibetan silver and Miaoyin areas. It is known that as long as department businessmen use them to make new rubbing moulds and non-hand-held (special methods and ornaments) utensils and materials. In 2008, the market price of standard white copper was 65500 yuan per ton. 65.5 yuan/kg 0.065 yuan/g.