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Report on the building and ornamental stones of Canada (1912)
Parks, William A. (William Arthur), 1868-1936, Canada. Mines Branch (1901-1936) · Ottawa : Dept. of Mines, Mines Branch · leaf 209
on the snaoothed surfaces, the stone contains more-ulphiir. and presumabh more pyrite, than No. 1530. ihc .inaKsis follows:—- per cent Insoluble matter -12 Soluble silica -26 I.inie 54-51 Magnesia- -44 Ferrous o.xide -06 Ferric oxide trace .Mumin.i ,;J...... . -06 Sulphur :*. -024 Equi\alent to… … Plant (if the Canadian C.ranitc and Marbk- WorU^, Marbleheail. B.C. Plate XXXI.Building stones · Geology, Economic · Stone industry and trade
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
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