Fe2O3
Hexagonal
hardness 5-6
streak red to red/brown.
Hematite is a mineral composed of iron oxide, specifically known as ferric oxide. It is a major source of iron ore and is commonly found in sedimentary rocks. It appears as shiny black to steel gray in color.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
Haematite is a form of iron(III) oxide, Fe2O3, which is found in the Earth's crust.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
There are a number of compounds of iron wuth oxygen, iron(I) oxide, ferrous oxide, FeO iron (II,III) oxide ferric ferrous oxide, Fe3O4 iron(III) oxide, ferric oxide, Fe2O3.
Any of various oxides of iron, such as ferric oxide or ferrous oxide.
iron oxide
Ferric oxide, an alternative name for iron (III) oxide, is a compound.
There are a number of compounds of iron wuth oxygen, iron(I) oxide, ferrous oxide, FeO iron (II,III) oxide ferric ferrous oxide, Fe3O4 iron(III) oxide, ferric oxide, Fe2O3.
2Fe + O2 --> 2FeO iron (II) oxide ( ferrous oxide 3Fe +2O2 -->Fe3O4 iron (II, II) oxide (ferric ferrous oxide) 4Fe + 3O2 --> 2Fe2O3 iron(III) oxide, (ferric oxide)
Iron oxide (ferric oxide)
Ferric compounds , including ferric oxide, are dark brown, reddish brown or chocolate brown.