Aluminum oxide powder. Mohs hardness=9, for polishing harder gemstones over 7.5 Mohs. Make your own slurry.
Fundamental Rockhound Products: 1 oz .3 Micron Aluminum Oxide
Aluminum Oxide Pre Polish Powder for Lapidary for sale at SUVA
Aluminum Oxide Polish: 5lbs : Health & Household
The Beast Diamond Polish by Lightning Lap – LightningLap
MICRO ALUMINA 25 lbs - aluminum oxide polish special , shipping in a Large Priority Mail Flat Rate Box. Shipping cost of $24.45 has been built into
Micro Alumina Polish - 25 lbs.
400/600 Grit Aluminum Oxide. This grade can also be used for polishing glass bottles.
20lbs Aluminum Oxide 400/600 Pre-Polish Rock Grit Stage 3
Fundamental Rockhound Products: Standard Tumble Polish
Aluminum Oxide: TXP and Rapid Polish for Rock Tumbling
Aluminum Oxide Polish: 2lbs : Health & Household
Aluminum Oxide: TXP and Rapid Polish for Rock Tumbling
The LL-Lite-Cerium Oxide Topper lap, has a proprietary coating for polishing Quartz, Glass, Beryl, and other gemstones. Cerium oxide is 7.5 mohs,
Lightning Lap Cerium Lap 8 - Topper
Fundamental Rockhound Products: 1 oz .3 Micron Aluminum Oxide
Aluminum Oxide Polish: 5lbs : Health & Household