10523 Pergamon of Canada Ltd., 207 Queen's Quay West, Toronto 1 Pergamon Press (Aust.) Pty. Ltd., 19...places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are... The peculiar bornite occurrences in the Ookiep area, Cape Province, are on one hand typical transition...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border...("solutions", "melts", and " v a p o r s ' " in this region are not sharply distinguishable). However, this |