Kunzite is a transparent pink, light pink, or light purple gemstone that resembles roze quartz It is a variety of the mineral spodumene Kunzite can fade after prolonged exposure to light Kunzite is also called "evening stone," because of its propensity to fade in bright light The original color of some kunzite stones can be restored or even intensified by irradiation It is usually used as a large stone and is easily chipped; small stones of kunzite are difficult to cut Kunzite is often used in pendants Kunzite has a hardness of 6-7 and a specific gravity of 3 1 - 3 2 Kunzite was first found in 1902 in Pala, California, USA, and is named for the gemologist George F Kunz Kunzite's chemical composition is LiAlSi2O6