Fire Quartz is a trade name, and its official mineral name is "Lepidocrocite in Quartz." It is also one of the minerals included in Super Seven, so it is sometimes referred to as Red Super Seven. This is a high-grade full bracelet with high transparency quartz and glittering red lepidocrocite, making it very beautiful. Due to its rarity and popularity, the price of Fire Quartz is steadily rising, but I am offering it at a low price to clear out my collection. This is a genuine natural stone, not the artificial stone or fake Fire Quartz that has recently been circulating, so please consider it. Stone size: Approximately 9mm (±0.5) Inner diameter: Approximately 16mm *Please note that there may be natural scratches, dents, and inclusions (internal inclusions).