- Chalcocite - CuS , black color and streak , H = 2 to 2.5 , alters to secondary copper minerals , conchoidal fracture , metallic luster , density = 3.5 to 3.8
- Bornite - CuFeS , also called "Peacock Ore" , color varies from copper red to red brown on a fresh surface , quickly tarnishes to a purple iridescence , grey black streak , H = 3 , density = 5.06 to 5.08 , metallic luster , poor cleavage
- Galena - PbS , 3 good cleavages , metallic luster , density = 7.6 , lead grey color and streak , H = 2.5
- Sphalerite - ZnS , resinous luster , multiple good cleavages , red brown to yellow brown color , brown to light yellow streak , H = 3.5 to 4 , density = 4.1
- Chalcopyrite - CuFeS , metallic yellow color , green black streak , massive habit , H = 3.5 to 4 , density = 4.1 to 4.3
- Pyrrhotite - FeS , bronze to red brown color , grey black streak , variable magnetism , H = 3.5 to 4.5 , density = 4.58 to 4.65 , generally mixed with chalcopyrite
- Covellite - CuS , indigo blue color , grey black streak , metallic luster , H = 1.5 to 2 , density = 4.6 to 4.8
- Cinnabar- HgS , red color , scarlet streak , H = 2 to 2.5 , density = 8.09 , adamantine luster
- Realgar - AsS , red to orange yellow color , orange red streak , associated with bright yellow orpiment , H = 1 to 1.5 , density = 3.6
- Orpiment - AsS , yellow color and streak , H = 1.5 to 2 , density = 3.5 , associated with realgar
- Pyrite - FeS , brass yellow color , green black to brown black streak , generally massive but striated cubes are common , metallic luster , H = 6 to 6.5 , density = 5
- Marcasite - FeS , tin white on a fresh surface , bronze yellow , generally lighter color than pyrite on exposed surface , coxcomb structure , generally forms in a near surface environment
- Arsenopyrite - FeAsS , silver white to steel grey color , dark grey black streak , metallic luster , H = 5.5 to 6
- Molybdenite - MoS , silver color , platy habit , H = 1 to 1.5 , blue grey streak on paper , green on streak , often confused with graphite , generally has a slightly blue tinge
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