Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
Magnetite is iron oxide with a ratio of iron to oxygen of 3 to 4. It is a black mineral
and is strongly magnetic. The most common crystal shape is the octahedron.
Upon prolonged exposure to air and water, magnetite will oxidize to the
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Just credit photo to R.Weller/Cochise College.