crystallize
crys.tal.lize also crys.tal.ize \'kris-t*-.li-z\ vt 1: to cause to form
crystals or assume crystalline form 2: to cause to take a definite form
{tried to ~ his thoughts} 3: to coat with crystals esp. of sugar : to
become crystallized - crys.tal.liz.er n
Webster's English Dictionary