gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1969.037.287.03 Comments on ‘Kaersutite from San Carlos, Arizona, with Comments on the Paragenesis of this Mineral’ by Brian Mason Prinz Martin 1 Department of Geology, University of New Mexico, Albuquerque, New Mexico 87106 Nehru C. E. Department of Geology, Brooklyn College, Brooklyn, New York 11210

On leave from Tufts University, Medford, Massachusetts.

 9 1969 37 287 333 337 31 1 1969 Copyright © 1969, The Mineralogical Society 1969 Summary

Electron probe analyses have been made of eight kaersutites from San Carlos, Arizona, and one from Kakanui, New Zealand; also of olivine, clinopyroxene, ilmenite, and spinel from San Carlos. There is not as yet adequate evidence that the kaersutite is an upper mantle phase.