nepheline syenite造句
Inaddition,mineralassemblageandgabbrosimilartogabbropegmatite;andnephelinesyenitenephelinesyeniterocksimilarpegmatiteandsoon.YunnanProvinceisrichinaluminiummineralresources.Mainmineralsproductscanbedi...
Inaddition,mineralassemblageandgabbrosimilartogabbropegmatite;andnephelinesyenitenephelinesyeniterocksimilarpegmatiteandsoon.YunnanProvinceisrichinaluminiummineralresources.Mainmineralsproductscanbedi...