It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.It occurs in nature very abundantly and is widely distributed. It is a chemical complex which occurs naturally comprising iron and oxygen. Iron oxide is vital to humans and useful in most geological and biological activities. This iron oxide may be required for investigations of its own particular properties or used as starting materials for other processes.