Fool's Gold
iron II sulfide
Ferrous Sulfide = Iron (III) Sulfide Both -> Fe2S3
iron sulphide, iron(II) sulphide or ferrous sulphide. Iron sulphide is ambiguous however and could refer to any one of a range of iron sulphur compounds,including Fe3S4 and Fe2S3
One of the most commonly known forms of iron sulfide is iron pyrite. Another common name for this compound is fool's gold.
Iron (III) Sulfide Ferrous Sulfide
When iron and sulfur are heated together, they react to form iron(II) sulfide, also known as ferrous sulfide (FeS). This compound is a grey solid with a metallic luster and is commonly found in nature as the mineral pyrrhotite.
Iron (II) sulfide
FeS is Iron II Sulfide Fe2S3 is Iron III Sulfide
An iron and sulfur mix is called iron sulfide, which is also known as ferrous sulfide or iron (II) sulfide.
Iron sulfide is an inorganic compound formed from the elements iron and sulfur. It is classified as a binary compound, specifically a metal sulfide.
If you mean, "What elements make up iron sulphide," then they are Iron and Sulphur. Various 'types' of iron sulphide exist, including FeS (iron (II) sulphide), FeS2 (commonly known as pyrite, iron (II) disulphide or fool's gold), and Fe2S3 (iron (III) sulphide).
Iron(II) sulfide is insoluble in water.