The Berengaria deposit is described (Annual Report 1928) as "a large boulder about 30 by 20 by 10 feet and standing on end." "It consisted of heavy alternating bands and masses of pyrrhotite, galena and zinc-blende, with small amounts of chalcopyrite, in limestone gangue." It was further suggested that the boulder was originally part of the Blue Bell deposit (082FNE043) which is hosted in Lower Cambrian Badshot Formation marble.