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Tip for Moss Agate

In working with dark moss agate, small pits may appear on the finished , polished surface. The light colored polishing powders (tin oxide or cerium oxide) often pack into these pits and removal is difficult. The white spots detract from the appearance of the stone. A small drop of India ink touched on the white pit and rubbed over the stone with a cloth works wonders.

(via Petrified Digest 9/09)