Fire agate gemstone, which is a layered stone. The layers are small enough that light entering them forms interference colours known as "fire."
The gem is thought to be formed when hot water, saturated with colloidal silica and iron oxide, invades cavities in country rock mineral and begins to cool. Chalcedony with iron oxide grows on any available surface (the iron oxide gives the basic brown colour to the gem). As the solutions begin to precipitate and grow, layers of silica and iron oxide are deposited depending on the relative level of those elements in solution and underlying conditions. These alternating silica and iron oxide layers (Schiller layers) cause the brilliant fire in the gem. As iron oxide runs out of the solution, colourless chalcedony continues to grow.
Fire agate is found only in the American Southwest Arizona, and Mexico and wasn't brought into commerce until after World War II. This, combined with the fact that it's one of the most difficult opaque materials to cut properly, keeps it scarce and mostly unknown to the general public.
Fire agate's hardness ratio is 7. .fire agate appears to glow inside like opal as a rock mineral. The fire agate gem is thought to be formed when hot water saturated with silica and lava oxide invade cavities in the rock and cool.Chalcendony with iron oxide begin to grow on the surface. The iron oxide gives the basic brown colour to the gemstone. It grows layers of silica and iron oxide. These alternating silica and iron oxide cause the brilliant fire from the fire agate stone. After the iron oxide ran out of the specimen colourless chalcedony continued to grow over it.
Natural Fire Agate gemstone is a majestic gemstone and sometimes Fire Agate rough is difficult to cut and polish as surface is not flat so dremel drill or undulating polishing surfaces are required to obtain a good finish polish. Fire Agate beads are hard to find but make spectacular necklaces. Fire Agate jewelry set in silver is popular.
Fire Agate stores offer loose gemstones or parcel deals of fire Agate from gemstone wholesalers
