Material: Tourmaline 10mm Origin: Brazil Size: Approximately 10mm (±0.5mm) Wrist size: Approximately 15.5cm (elastic) Weight: Approximately 29g Features and Meaning: The colorfulness unique to tourmaline, which has a wide variety of colors, is also attractive. Transparency can also be felt in the beads themselves. Please enjoy the various personalities, such as fresh beads and slightly dark beads. Tourmaline is a natural crystal that was born on Earth over 10,000 years ago. The transparent and beautiful crystal is the birthstone of October and is prized as the gemstone of hope in gem language. It is the natural stone with the most color variations. The origin of the name "tourmaline" is said to come from "turmali," which means "mixed colors" in Sinhala, a language of Sri Lanka. As can be seen from the origin of the name, it is a stone with a variety of colors. In addition, there are tourmalines that have dichroism, and some have multiple colors within a single stone. Product number: BG5771-10