UV FLUORESCENT OPAL

UV FLUORESCENT OPAL

Some specimens of common opal display a fluorescence under short-wave and long-wave ultraviolet light. Most fluorescent opals range in color from bright white to buttery yellow and exhibit a bright green color under fluorescent light, but blue and white fluorescence is also encountered. 

The main reason for its fluorescence is due to tiny levels of uranium being dissolved with the silica at the time the opal was formed (Miocene and Pliocene).

Pockets of fluorescent opal are found in many parts of the world but specially at Virgin Valley, Nevada.

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