Cerium Oxide Polish
Optical grade cerium for use on all quartz, agate and jasper. It also produces a great polish on petrified wood, coral, obsidian and man-made glasses including goldstone. Many people prefer cerium for tumbling feldspar materials such as moonstone, labradorite, sunstone and amazonite.
1.5 microns average particle size. Polish is beige in color. Recommended to use about one tablespoon per pound of rock.