In the US, cold weather ice pellets are called sleet(frozen rain), or more rarely graupel, which consists of ice crystals that collect on snowflakes.
Warm weather ice is hail, in which layers of ice build up on a nucleus as the ice is lifted aloft in thunderstorms.
sleet
ice pellets
Hail
Icey pellets that have a layered structure are likely hail. Hail will usually have soft ice and hard ice layers when sliced open.
Hail or sleet.
ice pellets
Sleet
This is frozen rain, which can be part of an ice storm. (Sleet is rain that freezes into ice pellets as it falls.)
Sleet
fish pellets
Early pellets were called grapeshot
Hail