Sardonyx

Sardonyx is a variety of Chalcedony.
Chakras - Base Chakra
Birthstone - August
Zodiac - Aries, Leo
Typical colours - black, red, brown, clear
Sardonyx is a stone of protection and strength. It promotes virtuous conduct and integrity. Sardonyx attracts friends and good fortune. It brings lasting happiness and stability to partnerships. Supplements willpower and strengthens character. Sardonyx increases stamina, vigor and self-control. It alleviates depression and overcomes hesitancy. Improves perception.
Sardonyx heals lungs and bones. It regulates fluids and cell metabolism, strengthens the immune system.
In addition to the generic healing properties of Sardonyx, specific colours have additional attributes:
Black Sardonyx absorbs negativity.
Brown Sardonyx grounds energy.
Clear Sardonyx purifies.
Red Sardonyx stimulates.