|Re: Mystery solved!|
|Re: Mystery solved! -- floorkasp||Post Reply||Edit||Forum||Where am I?|
I have read that wax pellets are mixed into the prepared glassy/ceramic compound, that, during the heating process, melt away. So these "bubbles" are actually cavities formed from the exit of the wax.
I also tend to think of "lava beads" as being something else. But perhaps the Czechs use this name too.