WordNet sense 1 ((used especially of fruits) preserved by coating with or allowing to absorb sugar):

candied, glace, crystalized

WordNet sense 2 (prevented from decaying or spoiling and prepared for future use):

preserved

WordNet sense 3 (having both internal structure and external form of a crystal):

crystallized

WordNet sense 4 (consisting of or containing or of the nature of crystals):

crystalline