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Help!! Need to Re-Polish Agate Geode Slab

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Author Topic: Help!! Need to Re-Polish Agate Geode Slab  (Read 397 times)
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« on: December 28, 2015, 06:48:50 pm »

The light colored mark appears to be a left over saw mark that wasn't fully sanded out of the slab. To get it removed you have to go back to the coarse sanding step and sand the whole surface down below the saw mark and then go to the finer grits, sanding and polishing, etc. Polishing on the saw mark only probably won't make it look polished but will make it more evident. I use a piece of window glass and various tumbling grits with water to "flat lap" smaller pieces when I'm making doublets and triplets but this won't work for polishing. Maybe you could use a piece of carpet on your hand drill to polish it. All of this work on the surface could result in going below the penetration depth of the blue dye and the color will be less blue.
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