The Mexican Fire Opal is named for its brilliant red to orange body color which is partly due to iron oxide. ... Mexican fire opal is the only natural opal that is normally faceted. Light and Dark Mexican Fire Opal varies from a bright orange to a reddish orange and is brilliant cut with precise calibration.

How can you tell if a Mexican fire opal is real?

The real fire opals are that of yellow, orange, and red colors and display a distinct play-of-color. They are homogeneous when viewed from different directions, have no ordered column structure or lizard skin effect. The real fire opal comes from two countries Mexico and Ethiopia.

What is Mexican opal?

Mexican Opals are known for their vivid yellow, orange or orange-red colors. The intense color has earned this gem the nickname fire opal. ... But it makes up for this with its remarkable body color. It is the few varieties of opal that can successfully be faceted, as some specimens can exhibit considerable transparency.