Canadian Institute of Mining and Metallurgy · Montreal (etc.) · leaf 594
from a megascopic examination of these rocks,and proven by a microscopic examination. A thin section of the speci-men of this rock, as stated in a previous part of the paper, shows it tobe impregnated with the sulphides, while in two sections which were ex-amined by the writer, fairly fresh… … u 540 The Canadian Mifiitig Institute. on granite-stock hold to the granite ; both, he beUeves, were formedby the differentiation of a once homogeneous magma. Sandbergerseparated the dark siHcates of a great many rocks, and, by operatingon quantities of 30 grams, proved them to contain Cu, Ni, Co,…
Mineral industries · Mines and mineral resources
Internet Archive Book Images · Gerstein - University of Toronto · No known copyright restrictions (public domain). Free to use for anything.
![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-179-58@90.webp)
