Fire Agate is a beautiful gemstone that shows a unique rainbow colored pattern. Fire agate is a layered stone. The layers are small enough that light entering them forms interference colours, known as “fire.”
The formation of Fire Agate is thought to occur when hot water that is rich in colloidal silica and iron oxide flows into rock cavities and cools down. As the surface begins to cool, it starts to form into Chalcedony. However, Fire Agate is unique because as it cools it continues to deposit layer upon layer of Chalcedony onto the existing mineral. These layers cause the brilliant rainbow colors in the gem. As the Iron oxide begins to run out, the mineral turns into colorless Chalcedony making a nice see through protective layer.
Some Fire Agate varieties have been famous for their specific colour such as orange-red agate.
Fire agate has only been discovered in the southern area of USA and other significant parts of Mexico. It has been also been found in California, Arizona and Kingman. It has also been established in the locality of the Colorado River. In Mexico, fire agate has been originated in two significant states like San Luis Potosi and Aguascalientes.
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