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

主要回收的金属物钽铌铁、细晶石、钽易解石、黑钨、白钨，大，一般为5~7。

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，含多金属硫化物的钨锰-白钨床会产主一系列的物理、化学变化，形成次生富集钨床。