Here are a few little bits and pieces about Opals the October birth stone. Yes as October is finished don't let the title fool you this is more a tribute.   Opal Characteristics: The major characteristic of the opal is the amazing flashes of rainbow like colors when it is viewed from different angles. The way these colours are is by an arrangement of silica spheres within the opal itself. Light bounces of the spheres creating the beautiful colours that Opals are known for.   Opal Colors: The two discerning features of Opals is that they can have a light or dark body color that may be either...