What is Gangue?
'''Gangue''' is the worthless [[substance]] that is left behind when [[mineral]]s are processed. When minerals are collected, the [[ore]] that is wanted is found only in small amounts. [[Flotation]] is used to concentrate the ore. The ore floats while the gangue sinks to the bottom. Sometimes minerals thought of as gangue are later recovered and used. {{sci-stub}} [[Category:Minerals]]