World's best black opal from Australia
What wax can I use for opal cutting?
Removing the dop wax as in your video…I am leery of thermal shock to the opal by undopping with the freezer…what are your thoughts?
Hello Audie There is no problem with the thermal shock with Australian opal. IF it comes from Ethiopia then I am not sure. The opal from Australia can take many temperatures. and in the last 25 years I have used the freezer method and never cracked an opal. even top gems. It really doesn;t matter. Regards Justin