A brief petrographic study of graphite ore from the Moyale area, southern Ethiopia
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This report describes the petrography of the graphite ore from the Moyale graphite deposit in southern Ethiopia. The method for the image-processing of thin sections is described. Eight thin sections were available and the average values of the following parameters are: Area percent graphite = 7.9 % Size of graphite grains = 0.0361 mm\u00B2 (range 1.383-0.004 mm\u00B2) Length of longest axis of graphite grains = 0.407 mm (range 3.83-0.08 mm) Length of shortest axis of graphite grains = 0.155 mm (range 1.93-0.02mm) This values must be regarded as maximum values and it is suggested that these measurements should be repeated with a larger number of thin sections before any benefication tests of the graphite ore performed.