White Opal: Formed by a combination of silicon dioxide and water trapped within solid rocks like limonite, sandstone, rhyolite, marl, and basalt, opal is distinguished by its iridescent play of colorâ€”a.k.a. â€œfireâ€â€”which reveals itself when exposed to a light source. Itâ€™s also the birthstone for October. Several varieties are used in jewelry, including: -Boulder Opal found in cracks or coatings in and around ironstone and sandstone boulders. -Opal Doublet which is a thin slice of precious opal cemented onto a backing, usually a piece of ironstone. -White Opal which has a milky pale white appearance with bright flashes of fire
Metaphysical Properties: A common misconception is that itâ€™s bad luck to wear opals if theyâ€™re not your birthstone. The fact is that opal was a good luck talisman in ancient times and today is regarded as a symbol of hope, innocence and purity. Itâ€™s a healing, protective stone that also intensifies emotions and releases inhibitions.
Origin: Australia, Ethiopia, Peru, U.S