... Report on the building and ornamental stones of Canada, vol. I-V (1912)
Parks, W. A. (William Arthur), 1868-1936, Canada. Mines Branch · Ottawa : Government printing bureau · leaf 286
own by the freezing test which givesa higher result for the frozen cube than for either the dry or wet cubes.The difference is of course to be neglected as it is well within the limitsof instrumental error. The inference is that the stone is not appreciablyaffected either by soaking or by freezing… … Portage du Fort marble. Quarry of the Pontiac Marble and Lime Co., Portage du Fort, Que. 197 An analysis by Leverin gave:— per cent. Insoluble matter 0.08 Ferric oxide and alumina. ... 0.32 Calcium oxide 30.85 equivalent to 55.12 per cent carbonate of lime.Magnesium oxide 21.04 equivalent to 43.07…
Building stones
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