Glacier is what type of water

I don't know if this is what you mean but glaciers are made of fresh water. most of earth's fresh water are in glaciers.

Alpine glaciers often feed rivers used for their freshwater. Glaciers in the Himalayas contain the largest store of water outside of the Greenland and Antarctic ice caps, and feed seven major Asian rivers: the Ganges, Indus, Brahmaputra, Mekong, Thanlwin, Yangtze, and Yellow Rivers.