Adamas developed the Alpha™ lap to polish all gem materials that will polish with Aluminum Oxide. The Alpha Lap is manufactured by Gearloose Lapidary LLC.
At low to moderate lap speeds, you can polish on this lap with just a water drip on the surface due its oxide/polymer composition.
Works well on gemstones between 7 and 8 Mohs hardness, such as Beryls, Garnets, Tourmaline, and many others.
Unlike previous Aluminum Oxide/polymer polishing laps, this one really works.
The Alpha Lap is especially useful with a water mist or drip in stones with surface reaching flaws or voids that could otherwise become packed with polishing agents, and of course, for emeralds, it is oil-fee. For general cutting it may be used with any high quality accurately graded slurry for faster speeds and the prevention of long-term glazing.