Which preposition to use with silky

in Occurrences 3%

Silky in texture, glossy, and refined in nature, with neither duffelness on the one hand nor curl or wiriness on the other.

on Occurrences 3%

This is a stronger growing species than C. pauciflora and C. spicata, with large leaves averaging 4 inches long, that are light green above and silky on the under sides.

of Occurrences 1%

When Katie returned from a call to the telephone it was to find Ann rubbing her hand over a pretty ankle adorned with the most silky of silken hose.

Which preposition to use with  silky