MEXICAN OPALS One cannot deny the beauty of the Mexican Fire Opal also known as the Mexican Diamond. The Aztec’s called them Vitzitziltecpa which means hummingbird stone and rightly so, the bright iridescent colors of the bird’s plumage mimicked the colors of the brilliant fire opal. According to historians, Aztec’s as early as in the 1200’s used the Fire Opal as embellishments for ornaments as...