“Time-lapse” of 4 photos over 2.5 hours. This Ethiopian #opal went totally trans
“Time-lapse” of 4 photos over 2.5 hours. This Ethiopian #opal went totally transparent. An hour later, out of the water, it went back to normal. Hydrophane opals suck up moisture. That’s why their so easy to dye… See Gems & Gemology Winter 2011 (Vol. 47 No. 4) Renfro/McClure. -- source link