... 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 218
[ Potsdam-Beekmantown Sandstone, VVm. Gordons Quarry. Post-office, Napanee, Ont. … 127 Under the microscope the rock is seen to be composed of grains of quartzof very irregular size. The larger particles are as much as one mm. in dia-meter and are generally well rounded, the smaller grains are more angularand fill the interstices between the larger grains. The cementing…
Building stones
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