Abstract: A spiral separator apparatus is used to separate a mixture of particles of different shapes. The spiral separator apparatus includes a rotating separator core that has a number of banked flights. As the separator core rotates, non-round particles continue traveling down the banked flights, while round or substantially round particles are ejected from the separator core by centrifugal force. Particles that are ejected from the separator core impact a housing, fall, and are collected, for example, in a collection bin.