00000nam 2200000za 4500 9.864824 CaOODSP 20221107161641 cr ||||||||||| 181116t19881989oncb #ob f000 0 eng 0660131188 CaOODSP eng eng fre n-cn--- M38-13/88-2E-PDF M38-13/88-2E Collings, R. K. Summary report no. 1 [electronic resource] : barite / R.K. Collings and P.R.A. Andrews. Barite Ottawa : Mineral Sciences Laboratories, 1988, c1989. 1 v. (various pagings) : maps CANMET report ; 88-2E "January 1988." Includes bibliographical references. "More than 150 occurrences or deposits of barite (barium sulphate, BaSO4) have been recorded in Canada; however, deposits of economic significance are confined largely to Newfoundland, Nova Scotia, Ontario and British Columbia. There are three main producers of barite at present: one with a mine at Brookfield, N.S., another with mines near Matachewan, Ont., and the third with mines near Golden, B.C. Barite occurs in the form of vein, replacement, and residual deposits; vein deposits predominate and form the chief source of commercial barite. Although some deposits are relatively high grade, most ores require beneficiation. Beneficiation commonly includes gravity concentration, e.g., jigging and tabling, magnetic separation and, occasionally, flotation. Barite's high specific gravity (4.5), opaqueness to X-rays, inertness, and whiteness make this mineral suitable for many diverse uses. Barite is used as a weighting agent in drilling-mud fluids in oil and gas-well drilling, as a flux in glass and ceramics, and as a filler and extender in paints and plastics. It is also used in pharmaceutical formulations and chemicals manufacture"--Abstract, p. i. Includes abstract in French. gccst Minerals gccst Mining industry gccst Manufacturing industry Andrews, P. R. A. Canada. Natural Resources Canada. Canada Centre for Mineral and Energy Technology. Mineral Sciences Laboratories (Canada) CANMET report ; 88-2E. (CaOODSP)9.852792 PDF 1.52 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m38-13/M38-13-88-2-eng.pdf