Material: Kyanite Silica 8.5mm Origin: Brazil Size: Approximately 8.5mm (±0.5mm) Wrist Size: Approximately 16.5cm (elastic) Weight: Approximately 28g Features/Meaning: Elegant with a glossy sheen. You can see the bamboo-like fibrous texture, which is a characteristic of kyanite silica. The color is a refreshing indigo blue that blends well with the skin. Kyanite's Japanese name is "ranshoseki" (藍晶石), meaning "blue crystal stone." Among kyanites, those with vivid colors, good color development, and transparency are of higher quality. When you observe kyanite closely, you can see many lines, which look like layers of crystals in a certain direction. The hardness changes depending on the direction of force applied to these layers. Due to this property, it is called "disthene," making it very difficult to process. The word "kyanite" comes from the Greek word "kyanos," meaning "blue." Item No.: BG6065-85