Chalcedony is a translucent quartz, usually a milky white, grey, black, blue, or brown. It is said to relieve problems of the eyes, the gall bladder, bones, spleen, and the blood and circulatory system. It assists in healing open sores and aids lactation. There are many popular chalcedonies, usually referred to as Agates. The Luna Agate assists in linking your mind to your feelings, and the Montana Agate can help you be more content with yourself.
Gnostic sects carved these stones with the symbol of the moon for its moon-like luster. Romans wore it as a protection against the Evil Eye. Thirty minutes of exposure to UV light or the color indigo increases the strength of this stone.
Chalcedony combats negative magic of all kinds. It has the power to inspire confidence, soothing depression and a troubled mind, and ease bad dreams. As a symbol of the moon, it has strong connections to water, and can be used as a protection against drowning. Travelers will also benefit from the stone, especially if they travel over water. It has a good influence over legal matters as well.