Lapis Lazuli (Lazurite), Tumble Polished, Afghanistan   These stones are gem quality. These stones would be great for cutting cabochons or other lapidary work. M880 - Silicate of sodium calcium and aluminum, with some sulfur; sodalite group. Hardness 5 to 5-1/2. Used as a gemstone. Birthstone for December. Lapis Lazuli is a mixture of lazurite, calcite, pyrite, and diopside. Good price!   Price: $6.00 per piece (You can always remove items from your cart later if you wish)