Discusses the advisability of retaining the name agmatite as a purely descriptive term to denote a fragmental rock with a more or less granitic cement, with no genetic connotation, and describes two types of agmatite, giving a brief account of their mode of occurrence and of the mineralogical and petrological changes that took place during their formation.

GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States