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The Sardonyx gemstone is considered as the traditional birthstone for august. Sardonyx represents the assortment of cryptocrystalline quartz that shows off the alternate bands of onyx and Sard. Sardonyx is a more protective stone that exemplifies a vibration of confidence, optimism and happiness. It assists to boost the level of personal power as well as self control. It has striking metaphysical properties that promote motivation, discipline, willpower and strength of character.