A bulk face sample (no. T124) of approximately 1 ton was taken on 12/4/1950 from the No. 5 seam, South African Witbank colliery at a point about 70 east of a point 100 south of peg 104. The seam here was about 69'' thick.
Reference:
La Grange, C. & Wolmarans, J. 1950. Washability and other characteristics of coal from the No. 5 seam Witbank colliery. http://hdl.handle.net/10204/12859 .
La Grange, C., & Wolmarans, J. (1950). Washability and other characteristics of coal from the No. 5 seam Witbank colliery Retrieved from http://hdl.handle.net/10204/12859
La Grange, CC, and JJ Wolmarans Washability and other characteristics of coal from the No. 5 seam Witbank colliery. 1950. http://hdl.handle.net/10204/12859
La Grange C, Wolmarans J. Washability and other characteristics of coal from the No. 5 seam Witbank colliery. 1950 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12859
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