File:... Report on the building and ornamental stones of Canada, vol. I-V (1912) (14590250349).jpg

Identifier: reportonbuilding01park (find matches)
Title: ... Report on the building and ornamental stones of Canada, vol. I-V
Year: 1912 (1910s)
Authors: Parks, W. A. (William Arthur), 1868-1936 Canada. Mines Branch
Subjects: Building stones
Publisher: Ottawa : Government printing bureau
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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Specific gravity 2 ⢠655 Weight per cubic foot, lbs 141-06 Pore space, per cent 14-87 Ratio of absorption, per cent 6-59 Coefficient of saturation 0-57 Permeability, c.c. per sq. in. per hour variable but always high 2130- Crushing strength, lbs. per sq. in 12590- Crushing strength after freezing, lbs. per sq. in. 10230- Loss of weight on freezing, per cent 0-052 Loss of weight on treatment with carljonic acid, grams per sq. in 0-0192 Transverse strength, lbs. per sq. in 568- Chiselling factor 4- An analysis by F. G. Wait shows:â Ferrous oxide, per cent 0-27 Ferric oxide, per cent 0-41 Sulphur, per cent 0-11 As this stone and the one from Logans quarry are the only Medina stonesexamined in detail, it is interesting to compare the physical tests of the twotypes, particularly as, to the naked eye, or even under the hand lens, thereis little difference to be observed. The microscopic examination of the twospecimens shows that in the Logan stone the grains are unequal in size, with
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