OHM Gems - The Luck Factor
Opal is a hydrated amorphous form of silica, meaning it lacks a crystalline structure. It is known for its rainbow-like color play, called “opalescence,” which is caused by the diffraction of light within its microscopic silica spheres. Opals can range in color from white to black, and are often described as having a milky appearance. They are typically found in Australia, but also occur in other countries such as Mexico and the Czech Republic. Opal has been used for jewelry for centuries and is considered a birthstone for those born in October.
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