..Report on the building and ornamental stones of Canada, volI-V . o fs. 105Quarrying and Dressing of Granite. Owing to the hardness of granite and the consequent high expense ofworking it, every physical property must be carefully considered and ad-vantage taken of slight differences in structure which might be neglectedin the case of softer stone. Assuming that the quality of the stone is satisfactory, the degree ofdevelopment of rift and grain must be carefully determined, for if thesepeculiarities of structure are feeljle or absent, the quarrying can be carriedon only at a greatly increase
..Report on the building and ornamental stones of Canada, volI-V . o fs. 105Quarrying and Dressing of Granite. Owing to the hardness of granite and the consequent high expense ofworking it, every physical property must be carefully considered and ad-vantage taken of slight differences in structure which might be neglectedin the case of softer stone. Assuming that the quality of the stone is satisfactory, the degree ofdevelopment of rift and grain must be carefully determined, for if thesepeculiarities of structure are feeljle or absent, the quarrying can be carriedon only at a greatly increased expense. In the granite area near Gananoque,Ont., it is found that the development of rift and grain varies greatly fromplace to place, in consequence of which, openings are constantly beingabandoned for others where the stone can ])e parted with greater facility. It is seldom that a mass of granite is continuous throughout; as alreadypointed out, the rock is usually traversed by vertical and horizontal vertical breaks (joints) are usually disposed in t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuildin, bookyear1912
