Heat up Opals in Microwave ! ? (4)

Let's check them out. I'm quite exited ...
White Opal


Left : Before / Right : After


Left : Before / Right : After


Left : Before / Right : After
No changes in White Opal.
Black Opal


Left : Before / Right : After


Left : Before / Right : After


Left : Before / Right : After
Nothing's changed in Black Opal as well and I'm quite relieved ...
Now, let's have our conclusions !