Sardonyx is a type of agate. It is believed to dispel negative thoughts, ease melancholy, increase perseverance, and hone the mind. It is said to increase courage, foster honesty, and bolster self-discipline. Sardonyx is a protective stone, believed to bring good fortune, promote friendship, increase energy, and encourage creativity. This is a stone of courage and strength that is said to aid us when we have an idea we need to convey, whether it is a presentation to a group of people, a confrontation we must get through peacefully, or a matter of love and romance. Sardonyx is one of the birthstones for the month of August, and it is associated with the Zodiac sign of Leo.

Botswana agate is said to help the wearer focus on solutions instead of problems. It is believed to relieve depression and ease stress. It derives its name from Botswana, a country in Southern Africa, where it is mined. Agate is believed to bring protection to its wearer, increase courage and strength, relieve stress, balance emotions, alleviate insomnia, and bring about pleasant dreams. It is said to increase self-confidence, enhance concentration, improve memory, help with communication and public speaking, and fight addictions. It is reputed to foster honesty and trust. Agate is associated with the Zodiac signs of Capricorn, Aquarius, Gemini, and Libra. It is the mystical birthstone for the month of September, and one of the birthstones for the months of May and June. Agate is also given as a gift for the 12th wedding anniversary.