Nepheline
ID: nepheline
Na3KAl4Si4O16
Description
Nepheline, sometimes referred to as nephelite, is a rock-forming aluminosilicate mineral classified within the feldspathoid group. Characterized by its silica-undersaturated chemistry and the chemical formula (Na3KAl4Si4O16), it typically forms in low-silica volcanic and intrusive igneous rocks, as well as their related pegmatitic deposits. Due to its unique composition, nepheline serves as a valuable industrial raw material, with significant applications in the production of glass and ceramic bodies. Beyond its utility in ceramic formulations, the mineral has also been evaluated as a potential source for aluminum extraction.