Morgan, P.G. 1927 Minerals and mineral substances of New Zealand. Wellington: Government Printer. New Zealand Geological Survey bulletin 32 110 p.
Abstract: The word “mineral” as used by mineralogists means an inorganic homogenous substance occurring in nature, having a definite chemical composition and certain distinguishing physical properties. This definition is much narrower than that of “mineral” as used in a popular everyday or even legal sense. Therefore, in order that the title may indicate the scope of this bulletin as nearly as possible, it specially includes mineral substances as well as minerals. Thus such materials as coal, clays, building-stones, and mineral waters are dealt with, though, of course, only briefly. The various minerals are listed in alphabetical order, and the following particulars concerning each are given: alternative names; general chemical composition; chemical symbol, if not highly complex; localities of occurrence; and references, if desirable, so far as available. (auth/DG)