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Fire Agate is sometimes referred to as iridescent agate or rainbow agate. Fire Agate is said to be Arizona's "Un-Official" State Mineral. Fire Agate is a cryptocrystalline silica with excellent hardness, about 7. This agate usually has inclusions of Goethite or Limonite which cause the stones to be iridescent.

The gem is thought to be formed when hot water saturated with colloidal silica and iron oxide invades cavities in country rock and begin to cool.


Fire Agate is known for its healing qualities as well as its connection to the energies of the earth. It promotes and enhances energy, including meditation, ritual, and spiritual healing energies. It may also be beneficial in healing problems with the stomach and endocrine system.

It can also heighten creative visualization. It strengthens the ability and will to manifest one's life purpose on the earth plane. Promotes energy and strength, especially while healing. Will help one discover the truth in a matter and to aid in accepting ones fate.

Physical Properties:

Fire Agate

Fire Agate Birthstone

Light Yellow, Pink
Specific Gravity
Refractive index


Fire agate is found only in the American Southwest and Mexico and wasn't brought into commerce until after World War II. These agates have come from several areas of the Sonora Desert region of northern Mexico and southern Arizona.


Mexico and the Sonoran Desert areas of Arizona and northern Mexico.