SAPONITE FROM THE WAKAMATSU MINE, TOTTORI PREFECTURE, JAPAN

Abstract

Saponite found at the Wakamatsu mine is a magnesium-rich member of the montmorillonite group. X-ray, differential thermal and chemical data of the mineral are presented. Influence of exchangeable Mg²⁺ ions on the X-ray diffraction pattern and the differential thermal diagram is discussed in some detail.