What are the valuable minerals in non-metallic ores?
As far as I know, China's 91 non-metallic minerals, the most valuable must be gem, agate ore. As Liaoning province jade is very valuable, but the mineral in China small reserves, mining difficult.
Others, such as graphite, bentonite, kaolin, talc and so on, are more valuable. Now China's status quo is: Mining non-metallic minerals do not make money, the key is to process non-metallic minerals to make money, I would like you to invest in mining, at the same time to invest, screening, processing, very profitable.
