The Basics Opal, deemed the Queen of Gems by Ancient Romans, was once considered a lucky stone because of its vast array of colors, which is called play-of-color. Precious opal exhibits play-of-color, but common opal does not. White or light opal is most common in jewelry, but it can be found in other hues as well.
As recently as 2008, opal was discovered on Mars during a NASA exploration.
Meaning Opal is associated with love, passion, fidelity and assurance. It is also said to have mystical and therapeutic properties.
Cleaning Opals should only be cleaned with warm, soapy water and a soft cloth.