Which preposition to use with coarsen

with Occurrences 2%

There was reflected a pair of hands, red and coarsened with rough work, a round face, shiny and swollen with crying, and a small round figure enshrouded in masses of hair falling in thick waves to within an inch or two of the knees.

in Occurrences 1%

Charlie, she decided, had grown hard and coarsened in the evolution of his ambition to get on, to make his pile.

into Occurrences 1%

And in his imagination, he saw the one picture merge and coarsen into the other, the dainty trappings of lace and ribbons change to a shapeless cloak, the young face wither from its beauty into a wrinkled and yellow mask.

Which preposition to use with  coarsen