Smoky Quartz Concave Cut Star, is a natural translucent grey-brown quartz, prized for its light grey-brown to deep chocolatey black and striking beauty. It is the birthstone for November and associated with the Capricorn & Scorpio zodiac signs. Resonating with the Root chakra, it supports grounding, detoxification, stress relief. The national gem of Scotland, smoky quartz has adorned Scottish Highland dress and broadswords for centuries. It gets its colour from natural irradiation. Ideal for releasing negativity, absorbing EMF, calming anxiety.