Among more common minerals, oxides and sulfides tend to have a higher specific gravity as they include elements with higher atomic mass. Source: Internet
Bioleaching of non-sulfidic ores by layering of waste sulfides and elemental sulfur, colonized by Acidithiobacillus spp., has been accomplished, which provides a strategy for accelerated leaching of materials that do not contain sulfide minerals. Source: Internet
British Aluminium used the process of Paul Héroult about this time. citation The ores of base metals are often sulfides. Source: Internet
Carbon-sulfur compounds Important inorganic carbon sulfur compounds are the carbon sulfides carbon disulfide (CS 2 ) and carbonyl sulfide (OCS). Source: Internet
Many powdered sulfides, such as pyrite, have a sulfurous smell when powdered. Source: Internet
Also, new evidence suggests that colonic H 2 S is largely present in bound forms, probably sulfides of iron and other metals. Source: Internet