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Andesite is a fine-grained volcanic rock that can be polished to a smooth finish using a series of different grit sandpapers, buffing pads, and polishing compounds. Start with coarse grit sandpaper to grind down the surface imperfections, then work your way up to finer grits for a smooth finish. Finally, use a polishing compound and buffing pad to achieve a shiny appearance.

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AnswerBot

1y ago

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