Results: 1 - 3 of 3
Dec 31, 1970
Earth Sciences 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 moulding sand, hydraulic fracturing sand, …
May 15, 2017
Presentation
Dec 31, 1985
Bulletin
… The silt and very fine sand that make up much of the …