Massive Khasi Sillimanite: A Natural Material Suitable for Tank Blocks

JSGT 1953 V37 T221_T239

The history of the deposits of sillimanite in the Khasi Hills, Assam, is reviewed. A description is given of trials in the laboratory and in large sheet glass tank furnaces which have demonstrated that blocks sawn from massive sillimanite or corundum/sillimanite rock are very well suited for use as tank blocks. The large-scale quarrying and sawing of the blocks is described.

C. F. Griffith