of "South-to-North Water Diversion Project". Mineral resources About 65 kinds of metals and non-metallic minerals have been found in Ankang, and 32 kinds have been proven valuable in the mining industry. The reserves of mercury, antimony, lead, zinc, gold, barite, witherite, slate tile, cement, limestone, turquoise are on the first rank of China or Shaanxi Province. Furthermore, the reserves of mercury and slate tile tops China, and the reserves of antimony, alluvial gold, barite, witherite, slate tile are on the top of Shaanxi. Mercury-antimony mine in Xunyang, the largest mercury-antimony mine in China, has a good market prospect. Industrial development The plant base of green industry covers an area of more than four million mu. The output of cocoon makes up 80% of the total output of cocoon in Shaanxi. Turmeric, Gynostemma pentaphylla and the tea enriched in selenium have obtained the formulation right of the national standard. The industrial systems of Qinba medicine, green food, Ankang silk, Han River hydropower, Jinzhou minerals and so on have been formed basically. Taking "Using Ecotourism to Promote Ankang" as the subject, highlight three traveling brands of "Han River's Culture, Qinba Scenery, Customs in Ankang", the tourism industry is full of vigor and vitality. Ankang carry out three projects of afforestation, ecological protection and environmental control to maintain and develop a good ecological environment with blue sky and white clouds, green mountains and blue waters in Ankang. Notes References Sources Works cited . External links Ankang City Government official homepage Cities in Shaanxi