Color buffing produces a bright lustrous or polished surface. Crushed / Irregular Abrasive grit, nugget, or media has a crushed or irregular shape. Typically, the irregular or crushed shapes are very ...

Sapphire is a high-purity and high-density, single-crystalline form of aluminum oxide that may contain chromia, titania, yttria, or other dopants. Sapphire is usually transparent or translucent.