Iron ore (hematite) chemical composition?
Fe2O3 so Iron (III) Oxide EDIT: Oops didn't see the answer above.
Why would everybody prefer to pretend Hematite? it is an exceedingly inexpensive gem stone and the pretend after it were decrease and polished would probably fee the comparable by way of actuality the authentic factor. additionally Hematite is a undemanding variety of iron ore, it is why it's so inexpensive.
