| has gloss | eng: An iron planet is a type of planet that consists primarily of an iron rich core with little or no mantle. Mercury is the largest celestial body of this type in our solar system, but even larger undiscovered pure iron exoplanets may exist. ] Origin Iron core planets may be the remnants of normal metal/silicate rocky planets whose rocky mantles were stripped away by giant impacts. Current planet formation models predict iron-rich planets will form in close-in orbits or orbiting massive stars where the protoplanetary disk presumably consists of iron rich material |
