PapaG:
This all too common sloppy practice of calling a crystal resonator just a crystal and a ceramic resonator just a resonator has lead many beginners off to a rather poor understanding of such components and how they actually work.
Nothing personal, just a pet peeve.
Lefty
How long has that sloppy practice been going on?
Not sure but, too long in my opinion. 
But I will go along with your pet peeves if you go along with mine.
Lefty