[GOLD STONE] Crystal Bracelet, Iris Quartz, Natural Rainbow, 8mm, Rainbow, Natural Stone, Power Stone, Inner Diameter: Approx. 21cm

■ Size: Diameter approximately 8mm (±0.5mm), Inner diameter approximately 210mm (±5mm) Rainbow quartz is a type of quartz that contains cracks within it, causing it to emit rainbow-colored sparkles when light reflects off the cracks. Not all cracks in a quartz crystal emit rainbow-colored light; only cracks with complex optical interference effects cause the reflected light to appear as brilliant rainbow colors. When sunlight is reflected rather than artificial light, the rainbow colors shine more brilliantly. Rainbow quartz is popular not only for its beauty, but also for its rarity, which comes from the fact that it contains cracks that meet certain conditions.