Sulfides in Biosystems

%&'(')*+&+,-./0.1#0&The aim of the present chapter is to discuss some aspects of sul de biomineralization and sul de bioweathering.In order to avoid repeating the content of recent reviews, this chapter does not provide a comprehensive treatment of interactions between sul de minerals and organisms.Instead, its primary focus is a description of the properties of biogenic sul de minerals that distinguish them from their inorganically-formed counterparts.The relationships between mineral properties and biological functions are discussed, some aspects of sul de formation by BIM are highlighted, and sul de bioweathering processes are mentioned brie y.Since iron sul des are by far the most important and abundant sul de minerals in biosystems, most of this chapter deals with such minerals.