Sapphire and ruby ​​are sister gems. They are all corundum minerals. They are the hardest natural minerals on earth except diamonds. The basic chemical composition is alumina. In addition to the star effect, only translucent or transparent and colorful corundum can be called a gem. Red and chrome-containing corundum is red, so it is called ruby; blue sapphire (Sapphire) is because it contains trace amounts of titanium and iron. In fact, in addition to the red corundum gemstones, all other shades of corundum are commercially referred to as sapphire. Therefore, Sapphire is not just a blue corundum gem. In addition to the complete blue series, it also has yellow, pink, orange, orange and purple colors like fireworks. Sapphire is collectively referred to as Sapphire. PTFE Coated Glass Fabric Silicone Psa Tape PTFE Glass Fabric Silicone Tape, PTFE Silicone Psa Tape, PTFE Coated Glass Fabric Tape NINGBO TIANSHUO (SUPERBRIGHT) TECHNOLOGY CO. LTD., , https://www.ptfe-supplier.com
September 17, 2020