|Frequently Asked Questions (FAQ) / Opal Doublet|
What is the difference between an opal doublet and a normal opal?
An opal doublet is a slice of precious opal glued to a black backing. This technique is used frequently with rare opal to produce larger and stronger pieces at a lower cost. The black backing, usually made of vitriolite or common opal, also causes the color of the opal to become darker and more vibrant.
- 初刊: February-20-2006
- 最終アップデート: December-03-2018
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