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FLUORESCENCE OF OPAL UNDER UV LIGHT AND TUNGSTEN (1 of 2)<br />
Photoluminescence of a Non-Crystalline Silicate<br />
Opal specimens shown under a mix of full spectrum UV and Tungsten light.

Fphoto-19528707A-2PS.jpg

FLUORESCENCE OF OPAL UNDER UV LIGHT AND TUNGSTEN (1 of 2)
Photoluminescence of a Non-Crystalline Silicate
Opal specimens shown under a mix of full spectrum UV and Tungsten light.

Copyright:© 1987 Paul Silverman - Fundamental Photographs

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