So I've read all of the how to threads. I have a dremel and picked up some 0.5 micron diamond paste and figured how hard can this really be? Ive been at it off and on for the past couple of days and while I've removed 90% of the coating I'm struggling with the outer perimeter as well as some random spots scattered around the crystal. I've tried changing the amount of pressure and increasing the dremel speed from 5000-20000 rpm with little luck. What am I doing wrong? I need suggestions from those who've accomplished this task. Thanks in advance.
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