Neither grinding temperature nor slurry pH had a significant effect on work done on ore as measured by the increase of minus 200 mesh ore during grinding. Citation Lui, A.W. and Hoey, G.R. (1977), "Temperature and pH Dependence of Steel Wear in Grinding Hematite Ore", Anti-Corrosion Methods and Materials, Vol. 24 No. 3, pp. 5-19.