What is the difference between iron and iron ore - Answers.com- ore and sand difference ,What is the difference between iron and iron nail? Iron is a compound iron nail is a iron ore which means that the iron nail is a mixture of metals such as copper and zinc added to make the nail ...what is the difference between the iron ore and iron sandwhat is the difference between the iron ore and iron sand What is the difference between pig iron and cast iron - The … Pig iron is cast iron with a very high carbon content: 4% by weight or more.