Fire Opal is a gem stone that varies in color from red to yellow.  Most of the gem quality stones are orange and come from Mexico.  They are found in other places and recently Brazil has been producing quality fire opals.  Fire opals essentially come in two types.  The ones that are simply colorful gemstones, and the ones that have the internal display of colors that make white opals valuable.  Those fire opals with the internal colors are much more valuable than the plain ones.

Folklore and healing:
    They have been admired as a symbol of love since ancient times in Persia, India and Central America.  The Mayans and Aztecs used them in rituals.  They are believed to improve spontaneity, enthusiasm, and development of new ideas.  They help you to look within yourself.  Some use them as a focal point for meditation or visualization.
The red,orange and yellow colors make fire opal a healing stone for the lower energy centers and the organs in that part of the body.