sedimentary fungus are formed by metals / mutualism that unsettle compacting / cementing together
clavicipitaceae is fungus. rust is fungus. true_fungus is fungus. basidiomycota is fungus. fungus is fungus. rubidium is unalloyed_metal. tungsten is unalloyed_metal. wood_decay_fungus is fungus. mushroom is form_of_fungus. basidiomycete is fungus.