The beresite from the Shuangshanzi gold mine contains a number of coarse-grained pyrite crystals with regular zonal structure.

Mainly coarse grained gold, along with pyrite, pyrrhotite, arsenopyrite, and minor base metal sulfides, occur in networks of quartz veinlets, brecciated wallrock, and disseminated in altered wallrock.

Nodular and vein pyrite has coarse grains or latex like appearance;