Gemstone Reports

Opal: Created Black

Growth or Treatment: Process Unknown


Identification Tools Required: Magnification


How to Identify: 


Primary Test: This is an easy separation from natural black opal due to the uniformity of the color structure. While the structure varies slightly across the stone, the overall color formation is far too uniform in both design and color hue and tone to be considered natural.


Secondary Tests: None needed


Repair and Setting: As a true lab created opal the same care should be taken as would be with a natural opal. No heat, no ultrasonic and no cleaners.

 

 

About Us

The Gemstone Treatment Report is a free access reference and study site powered by the International School of Gemology for the benefit of consumers and the gemstone industry. Visit us at this link: International School of Gemology.

Subscribe

Subscribe to our e-mail newsletter to receive updates.

Email Marketing You Can Trust


© Copyright 2015 YourGemologist LLC. All Rights Reserved.No copying, duplication or distribution to other websites without expressed written consent of YourGemologist LLC.