Did roman and byzantine artists make mosaics by pressing marble or glass tesserae into cement or plaster

i think it's about 10 mins.

actually i think that's wrong, but i don't know how to delete this.

but who knows it might be right.

the mass and the sacrifice are similar because jesus christ is the victim and priest in both. the mass is different from the sacrifice in that jesus died for the remission of sins and cannot be  sacrificed again during the mass.