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Q&A Blue soil (aka dirt) in an earth-like planet?

How could blue soil exist, in a realistic earth-like world. The world may even be earth. First off is it even possible - could soil like this exist given the requirements below? (if not then why?)...

8 answers  ·  posted 7y ago by R. Smyth‭  ·  last activity 5y ago by R. Smyth‭

Question earth-like society earth chemistry science-in-society soil unusual-color