Under hygrothermal climate, a series of physicochemical changes take place on huebnerite-scheelite deposit,containing polymetallic sulphi-des and slich a deposit forms a secondary tungsten deposit.

在温湿气候条件下，含多金属硫化钨锰-白钨矿矿床一列、化学变化，形成次生富集钨矿床。

The major metal minerals recycled include tantalum niobite, fine spar, tantalum aeschynite, wolframite and scheelite, which have large density of generally 5 to 7.

要回收金属矿钽铌铁矿、细晶石、钽易解石、黑钨矿、白钨矿，密度比较大，一般为5~7。