Natural resources of Quebec

Bibliographic data

Monograph

Identifikator:: 1796289558

URN:: urn:nbn:de:zbw-retromon-181093

Document type:: Monograph

Title:: Natural resources of Quebec

Edition:: Rev. ed.

Place of publication:: Ottawa

Publisher:: Natural resources intelligence service

Year of publication:: 1929

Scope:: 132 p; illus., maps

Digitisation:: 2022

Collection:: Economics Books

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Chapter

Document type:: Monograph

Structure type:: Chapter

Title:: Chapter V. Minerals

Collection:: Economics Books

194 NATURAL RESOURCES OF QUEBEC neighbourhood of Three Rivers. At Red-Mill the Canada Paint Com- pany operates an extensive plant for calcining, washing and grinding pigments from its deposits. The iron oxides found in Quebec are of two classes, the raw oxides, which are marketed without any preparation, and which are used in the manufacture of coal gas as a purifying agent to absorb hydrogen sulphide, and the calcined oxides which are further treated for the manufacture of paints. The province of Quebec is the only province in Canada which oroduces natural iron oxides and ochre. Much of the calcined material assays over 90 per cent iron oxide, and some of it reaches 98 per cent and over. There are numerous deposits of this high order, of various shades of red, brown and yellow. In 1927, 5.931 tons of mineral paints, valued at $102,186, were pro- Juced. Mica.—Quebec has practically a world monopoly in the production of the amber or phlogopite variety of mica, which is far more valuable than the white or muscovite variety, being more pliable and elastic. The deposits are found north of the Ottawa river and between the valleys of the Gatineau and Liévre rivers in an area of 1,125 square miles. For the construction of electric machinery the Quebec mica is second to none, its essential qualities of insulation, flexibility, elasticity, tough- ness and cleavability being of the highest. The chief use for mica is for Insulation purposes in the manufacture of electrical machinery. The invention of micaboard or micanite utilizes the small size sheets. Ground mica, made from pulverized sheets too small for micanite, is used for various purposes. viz., as a lustre to wall paper; as an adulterant n paint; as a fire-proof covering for pipes; as a lubricant; and in the manufacture of insulation for high current wires The United States is by far the largest consumer of Canadian mica. In the British markets preference is given to the Indian mica. The price of mica varies with the grade, from $12 a ton for scrap mica to $5 a pound lor extra large sheets. In point of value, mica stands fifth among the minerals of Quebec. The production of mica during 1927 in Quebec was 4,455,239 pounds, valued at $105,446. Quebec furnished 60 per cent of the total Canadian production of mica in 1927. Graphite.—Numerous deposits of flake graphite are found in the Laurentian rocks to the north of the Ottawa river, sometimes forming 30 per cent of the whole rock, but the average is 8 to 15 per cent. Though the graphite deposits are numerous and have been worked in the town- ships of Grenville, Buckingham, Lochabar and Amherst since 1847, great difficulty has always been encountered in the concentration of the graphite 50 as to eliminate the accompanying minerals. especially mica, n order to obtain a pure product.

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