metallibacterium metallibacterium metallibacterium is a gram-negative genus of pseudomonadota from the family of rhodanobacteraceae with one known species (metallibacterium scheffleri). metallibacterium scheffleri has been isolated from acidic biofilm from a pyrite mine from the harz mountain in germany. metallibacterium scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: lysobacterales family: lysobacteraceae genus: metallibacteriumziegler et al. 2013 type species metallibacterium scheffleri species m. scheffleri