Refraction Index: 1.73-1.76 Hardness: 7.0-7.5 Specific Gravity: 3.65-3.87 Treatment: None Care: Wash with soapy water. Avoid harsh detergents. Never clean ultrasonically or steam clean.
January birthstone, these garnets are high quality, well cut. They come in a variety of shapes. Great for jewelry design. These genuine gemstones will help you create beautiful finished jewelry.
Metal Clay, safe to fire. Test results Silver 1200F-1HR OK, Silver 1475F-1HR Metallic, Silver 1650F-2HR Metallic, Bronze 1525F-2HR OK, and Copper 1778F-30 min OK, Fire in carbon to avoid metallic coating.