Skyway Polishing Lap
The Skyway™ is a refractory alloy ceramic/polymer composite polishing lap. It is made on a full-thickness aluminum base, and machined on both sides for flatness. The Skyway is an aggressive and fast polishing lap for the feldspars, peridot, beryls, quartzes, (and especially the noncrystalline species like opal), garnets, tourmaline, tanzanite. Spinel, topaz, and zircon polish faster on the Skyway when "boosted" with a little alumina.