用“nepheline syenite”造句大全,nepheline syenite造句
In addition, mineral assemblage and gabbro similar to gabbro pegmatite; and nepheline syenitenepheline syenite rock similar pegmatite and so on.
Yunnan Province is rich in aluminium mineral resources. Main minerals products can be divided into two types. That is, sedimentary bauxite and nepheline syenite.