An alundum stone is an abrasive that is specifically designed to grind glass. You must work wet when using an alundum stone as the water helps remove the aluminum oxide residue created during the...
This petite round black spinel is a budget-friendly alternative to black diamond and other more expensive black stones; the hardness makes it an appropriate choice for adding dramatic black stones to...
This petite round black spinel is a budget-friendly alternative to black diamond and other more expensive black stones; the hardness makes it an appropriate choice for adding dramatic black stones to...