Taiwanese Hokutolite Necklace Measured for negative ions and radiation *Each piece is carefully handcrafted by professional artisans. The wire uses a flexible and firm thick stainless steel wire. We also carry a wide selection of radium products, including Bad Gastein stone and Himekawa Yakuseki. 【Specifications】 Bead size: Approximately 4mm Total length: Approximately 40cm (adjustable + 5cm) Clasp: Silver925 hook and adjustable *Length adjustment available Please let us know your desired length in the comments for a re-estimate. *Hardware changes accepted ・Change to brass button clasp → Free ・Silver925 hook plate → Free ・Silver925 insert bean clasp → +2,000 yen ・K18 hook plate → +8,000 yen 【Radiation Level】 Approximately 3-5μsv (Please note that the radiation level is not constant due to the natural mineral.) *Although the price is low, please rest assured that these are genuine products imported in large quantities through official channels. 【Taiwanese Hokutolite】 This precious stone exists only in two places: Beitou Hot Spring in Taiwan and Tamagawa Hot Spring in Akita Prefecture, Japan. In Japan, it was designated as a natural monument in 1922 and a special natural monument in 1952, and mining is now prohibited. This product is Hokutolite purchased from a Taiwanese vendor who owns a factory that processes the raw stone. It is said to have health-promoting effects by emitting radiation due to its radium content. Because Hokutolite contains radium, it is said to be a "doctor-free" stone that is good for health due to the hormesis effect. Hokutolite commonly distributed as round beads is processed with Hokutolite powder/small pieces using ceramics, but this does not affect the stone's effects. *Notes before purchase* ※We try to photograph the colors as close to the actual product as possible, but the colors may appear different depending on your monitor or smartphone. Please understand. ----------------------------------------------- #Naturalstone工房北投石 Click here for a list of other Hokutolite products on sale -----------------------------------------------