Smoke Treatment in Wollo Opal

Before & after smoke treatment. These opals
originally looked identical in transparency and
play of color.

Wello, Wollo, whatever you call it - this is the place in Ethiopia that is producing some interesting Opal. I have made comments about it in the past and I wanted to share with you what the experts are seeing at the moment.

The link below is a paper on the latest treatment given to Wollo opal - the result is not unlike Lightning Ridge Dark Crystal Opal so please be aware.

Smoke Treatment in Wollo Opal by Stone Group Labs

Have you seen this smoke treated opal? Send me your photo's or post a link!