It was first described by August Breithaupt for an occurrence in Beraun currently in the Czech Republic.

It is found as an alteration product of triphylite at the Big Chief and Hesnard mines, Keystone, Pennington County, South Dakota, New Hampshire, in Arkansas, New Jersey and Pennsylvania in the United States.

The chemical analysis of beraunite often show small and irrational amounts of ferrous iron.

Phosphate minerals have special characteristics about their chemical composition.

The polyatomic complex of iron-oxygen octahedral face is sharing triplets corner to four other octahedral in the arrangement of atoms of the basic iron phosphates like dufrenite, rockbridgeite, and Beraunite.