Vermiculite as a Member in Mixed-Layer Minerals

H. Heystek
Council for Scientific and Industrial Research, National Chemical Research Laboratory, Pretoria, South Africa

Abstract: X-ray diffraction and differential thermal analysis data are presented for colloid fractions from a soil and shales containing a vermiculite and a montmorillonoid; a chlorite and a vermiculite-chlorite mixed-layer mineral; and a montmorillonoid and a vermiculite-chlorite mixed-layer mineral. The minerals were identified by heating the clay fractions at various temperatures and by treating them with ethylene glycol and/or ammonium chloride.

Clays and Clay Minerals; 1955 v. 4; no. 1; p. 429-434; DOI: 10.1346/CCMN.1955.0040148
© 1955, The Clay Minerals Society
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