Kaolinite Crystallization at Room Temperature by Homogeneous Precipitation—III: Hydrolysis of Feldspars

A. La Iglesia, J. L. Martin-Vivaldi Jr. and F. Lopez Aguayo
Departamento de Cristalografia y Mineralogia, Facultad de Ciencias Geologicas, Universidad Complutense de Madrid, Spain

Abstract: The kaolinite crystallization by homogeneous precipitation with previous hydrolysis of the feldspars added has been followed by pH and potassium concentration measurements. The synthesized products were studied by X-ray powder diffraction and electron microscopy and consist of kaolinite and mica, accompanied occasionally by traces of smectite. The relative quantities of the synthesized minerals depend fundamentally on the supply rate of the alkaline ions.

Clays and Clay Minerals; February 1976 v. 24; no. 1; p. 36-42; DOI: 10.1346/CCMN.1976.0240104
© 1976, The Clay Minerals Society
Clay Minerals Society (www.clays.org)