The Chating Cu-Au deposit in Xuancheng City, Anhui Province, is characterized by porphyry-style mineralization with intensive hydrothermal alteration. Short-wave infrared reflectance spectroscopy was use.
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[pdf] Unplug the Dremel and attach the appropriate sized drill bit. Begin drilling the material with the Dremel set on a slow speed. Hold the Dremel perpendicular to the material at all times. Once you start the hole, you can increase the speed to quicken the drilling process.
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