Astrophyllite resonates with all chakras, but mostly balances and stimulates the crown chakra. Astrophyllite promotes intimacy. Helps you become sensitive to unspoken needs. Helps with the reproductive and nervous systems. It is good for PMS and menopause. 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.