CONTAMINATION OF ROCK SAMPLES DURING GRINDING AS ... - …
Control grinding Samples heated to 600 C. Crushing effected by quenching in cold distilled water. The shattered fragments were further crushed in a Plattner mortar (without the collar) and the final grinding or pulverizing action completed in the agate mortar. Figure 3---Flow diagram of treatment of quartz and quartzite samples, group 3
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