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总论1985年加拿大工业矿物产销情况[刊,英]//《加拿大采矿杂志》1986No.2,67～75页1985年,加拿大石棉总装货量为743678吨,比1984年减少92976吨,石棉工业的雇员由1979年的8千多人减少到现在的3000多人,大部份石棉矿山产最下降;云母产量比1984年增长了13.2%,平均每单位价格增长了2%;滑石和叶蜡石的装货量比1984年上升7%,平均每单位价格上升9.4%;石膏原矿的出口量接近于1984年的创纪录的水平(约620万吨),石膏墙板进口量比1984年
General 1985 Canadian industrial minerals production and sales [] Canada Mining Magazine 1986No.2,67 ~ 75 In 1985, Canadian asbestos total installed capacity of 743,678 tons, a decrease of 92976 tons over 1984, asbestos industry Of its employees declined from 8,000 in 1979 to more than 3,000 today, with most of the asbestos mills declining; the production of mica increased 13.2% over 1984 and the average price per unit increased by 2%; talc and leaf wax Shipments of stone rose 7% over 1984, with an average unit price increase of 9.4%; gypsum ore exports approaching a record level of 1984 (about 6.2 million tonnes) and gypsum wallboard imports were higher than in 1984