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Note: The diamond disc is attached to a magnetic disc which is then placed on the wheel plate. Diamond disks are located on the stud shelf shelf in the ICP preparation area of the Thin Section Lab. Use the silver or purple diamond disc.
Figure 1: Buehler Grinder Polisher. A. On/Off switch B. Power Indicator light C. Timer On/Off button D. Water On/Off switch E. Water flow control knob F. Disc speed control. G. Stop/Start. H. Emergency Stop.
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Polish the rocks with a Buehler diamond disc (Figure 2) until they're completely smooth and round on all edges. The purpose of grinding on a diamond disc is to remove any possible contaminates caused by the drilling mud (or drill bit) or the rock saws in the splitting room. There should be no pits or jagged corners. Put the rock into a labeled beaker (Figure 3). Before polishing the next sample, clean the diamond disc with a dressing stone. Dressing stones are found in the Splitting Room of the Core Lab. Do this for all samples and then move on to 'Cleaning Samples'.
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