Babs: the one I was talking about was very matt indeed. John thinks that the artist used really dry (powder) glaze and that IMO is a bit dangerous for the lungs!
Irene: thank you muches for the link! The one in your post is passing me to an error page. When I google Simon Fraser I also get an error page. How did you guys get to her Website? I would be very interested in this artist. Thank you once again!
Neil: thank you for all the interesting information. If I try matt glaze/dry glaze, it would be on a non-functional piece!
The artist I saw that piece in Dublin is Gloria Carrasco of Mexico. I converted the picture and I hope you can see it now.
Thanks again for all your help!