Mexico has been the world’s prime source of Fire Opal for about 100 years. The Mexican Fire Opal deposits create enormous amounts of lucid to translucent, bright orange to orange-red shade.
Some of the crystal clear material is faceted, mounted in Commercial Gems, and explained as “Tangerine Opal” because of its shading. Mexican Fire Opals are discovered in rock strata going through mountain regions where there are numerous extinct Volcanoes and Opal veins are found in joints, Cracks or Cavities.
In the 1990s, Ethiopia turned into a significant source of Opal. Much of the Ethiopian Opal is Fire Opal and Exquisite Fire Opal. A significant part f the Ethiopian Fire Opal is yellow.
Smaller amounts of Fire Opal are manufactured in Brazil, Australia, Guatemala, & Honduras. In the United States, Nevada and Oregon manufacture some alluring Fire Opal.