Can 2 telluric planets orbiting around each other exist?

For the purpose of a story, I would like to imagine a system of two Earth-like planets orbiting like Earth and Moon.

I imagine that these planets were created by a gigantic collision at the beginning of this stellar system between two planets.

One of these planets traps quite all the iron and metals, and the other stays with a small iron nucleus.

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Can 2 telluric planets orbiting around each other exist?

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