Material: Tourmaline 6mm Origin: Brazil Size: Approximately 6mm (±0.5mm) Wrist size: Approximately 15.5cm (elastic) Weight: Approximately 10g Features and Meaning: This is a fun type that collects various colors. It is recommended for accessory materials, as it includes highly transparent ones, rare colors, and those that exhibit a cat's eye effect. Tourmaline is a natural crystal that originated on Earth over 10,000 years ago. The transparent and beautiful crystal is the birthstone for October and is treasured as the gemstone of hope in gemological terms. It is the natural stone with the most color variations. The name "tourmaline" is said to be derived from the Sinhalese word "turmali," meaning "mixed colors," from Sri Lanka. As the origin of the name suggests, it is a stone with a variety of colors. Also, there are tourmalines with dichroism, and some have multiple colors within a single stone. Product number: BG5804-6