Thank you for viewing! * As shown in the photos, some beads have irregularities. Please understand this before purchasing. * The product is photographed to show its colors as closely as possible to the actual item, but the color may differ slightly from the actual product due to the light source, camera, and monitor screen. [Natural Stone ◆ Black Silica ✡ High Purity 12N Terahertz Ore ✡ Golden Obsidian ✡ Hematite Bracelet] ■ Product Number: 38-2 1188 yen ■ Product Size: ✪ Inner circumference: Approximately 168mm ✪ Bead diameter Golden Obsidian Approximately 10mm Black Silica Approximately 8mm High Purity 12N Terahertz Ore Approximately 12mm ~Black Silica~ Black Silica is a mineral formed by the mixture of graphite and silica, and it is a rare mineral that is only produced in the Kami no Kuni-cho Shinmei district of Hokkaido, Japan. The Shinmei district, where it is produced, is considered a sacred place where the Ainu people performed rituals, and ceremonial tools used in rituals have also been discovered. Black Silica, also known as "Shinmei Stone" after its place of origin, is said to possess special powers because it is produced in a sacred place. In ancient times, people used Black Silica as a "stone where gods reside" and a "stone that relieves pain" for treating illnesses. Black Silica is said to emit far-infrared rays semi-permanently at room temperature, and the far-infrared rays emitted by Black Silica are classified as "growth rays," which have the most beneficial effects on the body. It is a stone that has the effect of expanding microvessels, improving blood flow, activating body tissues, promoting metabolism, and warming the body from the core, so it is especially recommended for those who suffer from chronic stiffness and coldness.