Fire agate is a rare variety of layered chalcedony quartz with a beautiful fiery iridescent effect. It can only be found in Northern Mexico and some of the South Western United States. The reason for its iridescent appearance is because when light passes through the different layers composed of limonite or goethite iron oxide and silica, it causes a prism effect that causes the light to separate into various colors. This is what distinguishes it from all other agates.
Chemical Formula: SiO2
Hardness: 6-7
***NOTE TO BUYER***
This is a "random selection" listing. You will NOT receive the exact item photographed in the listing, but one that is very similar. However, due to the unique nature of each mineral, the size, shape, and color may vary slightly.
Please reference secondary photos for examples of variations within the product. If you have certain specification requirements, please reach out via email.
