... 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 370
owing it is said to a lack of market and thelow price at that time of the output. This quarry had, in 1877, a lengthof 150 feet by 60 in breadth, and with a depth in one place of 35 feet, andin 1877 produced about 600 squares of slate.^ This old quarry was visited but little can be learned as it is… … Kingsey slate. Old quarry on St. Francis river, near Trenholm, Que. 245 excessively shattered but no conclusions can be drawn from its appearance.The dump shows much material of inferior cleave and numerous piecesheavily blotched with green. Some of the slate is very red and of uniformcolour which…
Building stones
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