A bracelet featuring a variety of deeply colored hackmanite. Hackmanite is a variety of sodalite. Sodalite comes in three types: the usual bluish, non-fluorescent type; the type found in syenite, also known as "yooperlite," which only fluoresces when exposed to ultraviolet light; and hackmanite, which changes color after being irradiated. Hackmanite originally has a soft jade-like color, but when exposed to a black light, it changes to a color between pink and purple for about several minutes. Due to its special properties, it is a popular stone among enthusiasts. This bracelet is made with stones that have a good original color, so the color change after irradiation is not very noticeable, but you can still enjoy the fluorescence. The 9mm size is easy to wear, and the quality of this bracelet would be worth around 100,000 to 200,000 yen in the market. Please consider it. (Number of beads) 22 (Bead size) Approximately 9mm (Wrist size) 17cm (suitable for most men) *Photo 4 shows the stone under black light irradiation Please understand that there may be imperfections inherent to natural stones, such as non-circular shapes or chips, before purchasing. Shipping will be via Mercari's tracked shipping service. I will be slow to respond on weekdays, but I will always reply to your comments. ・Natural stone ・Power stone ・Beads #MorinoIshiya'sHiddenTreasures ←By project #MorinoIshiyaHackmanite ←By stone #MorinoIshiyaBracelets ←By item #MorinoIshiyaPurple ←By color #MorinoIshiya ←All products