I happened to find this material regarding countable & uncountable nouns, and this part deals with uncountable nouns(mass nouns) can be converted to countable nouns when they refers to actual types of things, and one of the examples is "ice vs ices"
Have you heard of "ices"? If it exists, what does it mean?
ice vs ices from the material
ex) One more example: "I love the works of Beethoven" means that I like his symphonies, his string quartets, his concerti and sonatas, his choral pieces — all very countable things, works. "I hate work" means that I find the very idea of labor, in a general way, quite unappealing. Notice that the plural form means something quite different from the singular form of this word; they're obviously related, but they're different. What is the relationship between plastic and plastics, wood and woods, ice and [Italian] ices, hair and hairs?
Further, as noted earlier, almost all mass nouns can become count nouns when they are used in a classificatory sense
a. They served some nice Brazilian wines.
b. There were some real beauties in that rose garden.
c. We had some serious difficulties in this project.