Material: Skolecite 11mm Origin: Brazil Size: Approximately 11mm (±0.5mm) Wrist size: Approximately 16.5cm (elastic) Weight: Approximately 35g Features and Meaning: This is a highly valuable stone, as only selected raw stones transform into skolecite. The current stock has a deep purple color and a characteristic semi-transparent, mellow impression. Please enjoy it in your hands. This stone is created by irradiating and heating amethyst, a process that is not naturally occurring. (※The exact method of creation is not widely known, based on current information) Although there are a few natural ones, they are rarely found in circulation. Not all amethysts undergo this transformation; only a limited number of raw stones exhibit this beautiful change, making it a rare stone. It is also known as lavender quartz and is sometimes called hydrangea quartz (ajisai suisho). ※When subjected to gemological identification, it is listed as milky quartz. Item number: BG5927-11