钢霞正长岩2) juvite 正霞正长岩3) nepheline syenite 霞石正长岩 1. Preparation of Layered Sodium Silicate from Nepheline Syenite: An Experimental Study; 利用霞石正长岩制备层状硅酸钠的实验研究 2. The thermodynamic calculations of the Gibbs free energies for typical multiple phase equilibria ...