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May 07, 2014
Data
Dec 31, 1970
Open File Report
… of many industrial sand products are outlined in this … concern high purity silica sand used as a raw material for the … industry, and for molding sand, hydraulic fracturing sand and …
Dec 31, 1973
Earth Sciences Report
… follows: muskeg, gravel, coarse sand, till, clay, shale, fine sand, silt and sandstone. The map …