TY - SER AU - Turner, F.J. AU - Hutton, C.O. TI - Stilpnomelane and related minerals as constituents of Schists from Western Otago, New Zealand KW - Stilpnomelane minerals - Western Otago - New Zealand KW - Phyllosilicate minerals - Western Otago - New Zealand KW - Petrography - Quartzo feldspathic sediments - Forbes range - Western Otago - New Zealand N2 - Extract In a recent account of the petrography of certain low-grade, dynamically metamorphosed quartzo-feldspathic sediments from the Forbes Range, Western Otago, New Zealand, one of the writers x has noted the presence of a yellowish-brown strongly pleochroic mineral, which was identified as a ferruginous member of the stilpnomelane group ER -