No. 2 Genuine Guarantee ★ Natural Turquoise Bracelet ★ 6.0mm Thank you for always viewing. I will provide information about the product. This is a turquoise bracelet. Turquoise is a hydrated copper aluminum phosphate. Its Japanese name is "Toruko-ishi" (Turkish stone). It's called "Toruko-ishi" because turquoise mined in Persia (present-day Iran) passed through Turkey on its way to Europe. Turquoise is not mined in Turkey. It is also known as a symbol of Native Americans in America. Surprisingly, it seems to have been mined in China since ancient times. It turns green when it contains a lot of iron. Those with impurities in a web-like pattern are called spiderweb turquoise and are very popular. Conversely, the vibrant light blue color without impurities is also called Sleeping Beauty and is also very popular. Turquoise is very rare and expensive, so many imitations are sold. This bracelet is not from a famous production area, but it is natural turquoise without dyeing or stabilized processing. Size: 6.0mm Wrist circumference: 15 cm. Thank you very much.