925 Silver Hallmarked Botswana Agate Grade Pendant. Botswana agate's properties include a beautiful banded pattern and a variety of physical and metaphysical healing properties. Metaphysically, it is known for promoting emotional stability, calmness, and balance, and is used for stress relief, resilience, and helping to process grief or trauma. Physically, it is believed to support the circulatory system, aid in skin conditions, and have a calming effect on the nervous system. It is a form of banded chalcedony with a hardness of 6.5-7 on the Mohs scale.