fire opal

Fire opal 

True to its name, this gemstone was borne from fire. Formed in the depths of ancient volcanoes, fire opal is created when water seeps into silica-rich lava, filling its seams and hollows. Under this incredible heat and pressure, the lava traps water within itself, forming these magical, sun-bright droplets.Fire opal is the name given to a variety of opal found in North, Central, and South America that is yellowish to reddish. The most valuable material is transparent and reddish. Red varieties are often called cherry opal. Sun opal is a trade name applied to a bright yellow variety of Mexican fire opal.