What is the Average Cost of Nepheline? Average Nepheline Price

Nepheline, also called Sodium Potassium Aluminum Silicate, is a mineral from Silicates class that occurs in volcanic and intrusive rocks poor in silica. It is used as a mineral specimen and as a material for different types of ceramics and glasses. There are known two varieties of nepheline which are very different in appearance: glassy nepheline which has transparent and colorless crystals, and elaeolite characterized by a greenish or grey color with a greasy luster. Nepheline is not sold for commercial purpose.