hardlogic

I'm teary-eyed but never cry. Silver-tongued, but never lie. Double-winged, but never fly. Air-cooled, but never dry. What am I?
Common Wrong Answers
“Cloud”
Clouds can appear teary when it rains, but they don't have a tongue or wings, and they don't have the qualities associated with the element mercury.
“Angel”
Angels are often depicted with wings and could be considered 'teary-eyed' in a metaphorical sense, but they don't fit the descriptions of being 'silver-tongued' or 'air-cooled'.
“Fish”
Fish live in water and can be shiny, but they do not have wings, cannot be described as teary-eyed in the same sense, and do not have a tongue in the context of the riddle.