Which county in Chongqing has the richest mineral resources?

Dianjiang, Xiushan and Youyang Wolong River. Southwest Aluminum Group has proven coal reserves of 3.3 billion tons, which is an important base for coal production in southern China. The proven reserves of natural gas are 320 billion cubic meters, of which the exploitation of Wolong River gas field in Dianjiang ranks first in China. Strontium ore is the most distinctive dominant mineral in Chongqing, ranking first in the country in terms of reserves and quality. The proven reserves of manganese ore are 37 million tons, ranking second in the country. The reserves of vanadium, molybdenum and barium rank third in China. Mercury deposits distributed in Xiushan and Youyang are rare super-large deposits in China, with proven reserves of 6.5438+0.9 million tons. In addition, there are non-metallic minerals such as rock salt, barite, fluorite, limestone and silicon.