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 238
es of the limeand magnesia present. It may well be that the hardening of the stoneon exposure is due to the conversion of other lime and magnesia salts intocarbonates by the carbonic acid of the atmosphere. The analysis follows:— Per cent Insoluble residue 96-34 Soluble portion 3-66 Partial… … Winnipeg sandstone. Grindstone point, Lake Winnipeg, Man. 155 Grindstone point, Lake Winnipeg. On the north side of Grindstone point the following section is presented: 5 ft.—Thin-bedded mottled limestone. (See 1026, page 40). 40 ft.—Thin, friable, nodular, iron-stained, cross-bedded sandstoneswith…
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.
