Studies in Position and Mobility of the H Atoms in Hydrous Micas

I. Th. Rosenqvist
Institutt for Geologi, Blindern, Oslo, Norway

Abstract: The hydrogen content of dioctahedral and trioctahedral micas has been investigated by means of infrared spectroscopy and radioactive measurements. Dioctahedral and trioctahedral micas have been treated with deuterium oxide and tritium-bearing water. The introduced isotopes of hydrogen have been determined after various thermal treatments.

It is concluded that dioctahedral hydrous micas may represent mixed crystals between K(Si3Al)Al2O10(OH)2 and H2O(Si3Al)Al2O9(OH)3, whereas trioctahedral micas seem to represent mixed layer minerals between phlogopite and vermiculite.

Clays and Clay Minerals; 1962 v. 11; no. 1; p. 117-135; DOI: 10.1346/CCMN.1962.0110112
© 1962, The Clay Minerals Society
Clay Minerals Society (www.clays.org)