What is granite sand used for?

Most granite sand is used for aggregate in ready-mix concrete.  There are many types of granite sand.  Most of it is washed and screened but contains a lot of fine particles that allow it to compact.  The shape is generally angular and flat shape that adds to its ability to compact.  It works well as a compactable base for pavers and pathways.  It also works great as a base for horse arenas.  However, it is often too fine and dusty to be used as a footing.