Mineral Resources of Newfoundland

Abstract

ORES of copper have been found in all the older formations in Newfoundland, from the Laurentian gneiss at the base, to the Carboniferous series at the summit, the qualities of which vary greatly with the age and condition of the rocks with which they are associated. Thus in the Laurentian series the rich ores of variegated and sometimes grey sulphide of copper are more frequent than any other, and are for the most part in white quartz veins intersecting the strata; but while these ores have in many cases been found on analysis to yield at the rate of from 50 to 70 per cent. of metal, the quantities available at any one place hitherto tested have never yet been found sufficient to warrant an outlay of capital.