Aurora Fire Opal refers to a type of lab-created opal known for its vivid, non-directional, swirly patterns of green, blue, orange, and red, mimicking natural aurora borealis or sunset skies. It's often made with silica and resin; while "Aurora Opal" is a brand name for these synthetics, natural opals with similar vibrant colors are also mined, especially in Australia, but the term generally describes this distinct synthetic play-of-color.