Thank you Vernelle for taking the time to reply.... I will do more research in this regard. And Lori, no offense taken ... just kinda made me laugh when I read it...

And your work is great -- so I don't know why you wouldn't consider yourself a 'real' artist! And, some reason, I don't see any pix that you posted ... ?
Yes, my guess would be that it was mentioned because it is outdoors. My situation is that I cannot have bubbling or the like, though, I can see how it could be really interesting for some projects, this one, not so much... and I cannot have it yellow...and it must be frost/heat resistant.
I know .... I want it all!
Anyway -- glad to be introduced to this forum ... love all that I see here ... and again... I truly cannot wait to begin experimenting with kiln glass ... (but first things first) ...
Blessings all!
Bonnie
THE ART OF LIFE
P.S. There is an Epoxy type grout that can be found at Home Depot and the like ... The one that I'm familiar with is put out by Laticrete...