Agate's main themes are protection, strength and harmony. The Metaphysical and Healing Properties Lore of any specific type of agate depend to some extent on the color of the agate, but all agates have certain things in common.

Agate enhances creativity and strengthens the intellect, making it a beneficial stone for both students and artists. It is also known as a good luck stone. As a stone of harmony, one of the things agate does is balance yin/yang energy. Agate also increases energy. However, because it is a grounding stone, it does not increase energy at all times, but rather enables bursts of energy as needed. In this way, agate is a conservation stone, and enhances longevity.

Agate is a very protective stone. It is especially protective for children, and makes an excellent stone for children's amulets, medicine bags, jewelry, or just to carry around in a pocket. Agates are said to be especially useful for protecting children from falling.

Emotionally, agate gives courage, emotional strength, self-confidence, and dispels fears. It can also lessen feelings of envy by grounding the emotions. In the same way, it assists with acceptance of all things. It can be very beneficial for self-examination as well as examination of the circumstances one finds oneself in. These qualities make agate superior for easing anxiety and stress. Agate can cleanse and stabilize the aura by removing and/or transforming negative energy. As far as relationships go, agate is a stone of marital and romantic fidelity.

Agate can strengthen the body and the body's connection to the earth. Agate enhances healing of all kinds by bringing the elements of the wearer into harmony. Physically, agate is particularly helpful with tooth and gum issues, stomach problems, physical endurance and insomnia. All agates can remove blockages from any chakra. Agate also relates to specific chakras according to the stone color.

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