The Millstone Grit of the Yorkshire Dales as a Source of Glass making Sand

JSGT 1945 V29 T273-T278

The geology of the millstone grits of Nidderdale and Wharfedale is described, and special reference is made to those at Smelthouses and Blackstone Edge which, when crushed, are suitable for glass-making. The mechanical and chemical analysis of samples from each locality are quoted. There are substantial quantities with iron oxide not exceeding 0·04%.

W. Davies & W. J. Rees