There are two different cultivars of Echeveria called "Fire and Ice"... one is a monster clone of the species E. subrigida (which has mostly straight edged, at most somewhat wavy leaves) and the other is a hybrid of "Mauna Loa" x "Zorro" which has ruffled edged leaves. I believe the plant pictured is the latter hybrid, and would like to propose moving the image to its own database entry:
Echeveria 'Fire and Ice'
For background see these pages:
http://www.crassulaceae.ch/de/...
https://www.smgrowers.com/prod...
Please let me know if you would have a problem with this move. I saw what the MCG page says but I think they are confused about which "Fire and Ice" they have.