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abrasive Alberta analyses anorthosite asbestos asphalt Athabaska Athabaska river average Basque bicarbonate bituminous sand blocks Bow Island brine British Columbia Calcium Canada Canadian Canadian National railway carbon black cent chemical chloride colour Company concentrates Constituents containing corundum creek crude crystal cubic feet deposits depth district dolomite drilled emulsion epsomite feldspar field garnet gases gasoline grade granite graphite helium Hot Springs important inches industry iron lake lepidolite lime limestone lithium Magnesium Magnesium bicarbonate magnetite manufacture marble material mica miles mill mineral Mines Branch natural gas obtained occurs Ontario operations outcrops output Peace River petroleum plant pounds present production quantity quarry quartz Quebec radioactivity radium railway reported rock salt samples sandstone shipments shipped silica silver soapstone soda sodium carbonate Specific gravity stone sulphide sulphur supply surface talc temperature tons township United valley zinc