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Q&A A planet made of iron

Our planet has a surface full of silicates and a core made of iron. It's due to this that Earth is the way it mostly is - most rocks and many minerals contain some form of silica. But what about a ...

5 answers  ·  posted 9y ago by Greenstack‭  ·  last activity 5y ago by Greenstack‭

Question reality-check planets geology origin-of-life metals life