Based on the excellent information provided by Spintergroup and others, I decided to try engraving on a ceramic tile.
Ortur LM3 10 watt
The tile was not pure white and had an off white color.
80 ml Alcohol
10 gems TiO2
Mixed in small spray bottle with BBs inside to stir.
The slower speed resulted in actual etching of the glaze. Lower power with higher speed worked better.
I am excited to do more with this and have a stack of left over tiles to use.
Thanks to all who have posted on this subject.