It is shown that a differential colorimetric technique can be used as a routine method for the estimation of titanium in beach sands, and their ore dressing products. The method will tolerate the presence of most of the other elements usually found in beach sands. The accuracy is shown to be within the limits of 031 per cent for concentrates containing more than 95 per cent titanium dioxide and 1 per cent for tailings containing 02 per cent titanium dioxide. The method is described for use with a Hilger "Spekker" absorptiometer.