Smoky Quartz is an excellent grounding stone, that provides balance to the root chakra and raises vibrations while meditating. Helps with depression and letting go of things that no longer serve oneself. Promotes positive thoughts. Smoky Quartz helps with pain. Metaphysical properties are provided for your information and are not meant to replace the advice of a qualified physician or medical practitioner. Due to the nature of this product, color, size, and shape will vary. Quarter is used for size reference.