Article Search Results

Show Filters
Showing 2 results for "������������������������������2���"


Articles (2)

Content Type



XClear Selections
Milky white opals
UV-Reactive Opal

The first documented UV-reactive chemical treatment to make opal appear tenebrescent.

Read More

Opal slices before and after water immersion
Hydrophane Opal Treatment

An opal rough is immersed in water and treated with oil and Opticon to observe effects on transparency and play-of-colour.

Read More