The Significance of Tourmaline in the Otago Schists, Volume 68, 1938-39, Transactions and Proceedings of the Royal Society of New Zealand

By C. Osborne Hutton , M.Sc., Ph.D., F.G.S., [ Read before the Otago Branch, September 13, 1938; received by the Editor, September 16, 1938; issued separately, March, 1939 .] During a recent detailed petrographic investigation, tourmaline has been found to be a widely distributed and often abundant constituent of the metamorphic rocks of western Ot...