A type of potassium salt deposit found in certain geological formations, particularly valuable as a source of potassium for fertilizer and chemicals.
From German 'Abraum,' meaning 'waste material' or 'overburden,' referring to salt deposits that were historically mined as a byproduct of other mineral extraction.
Abraum salts are found in ancient seas that dried up millions of years ago, and mining these deposits reveals layers of geological history—each salt layer representing different climate conditions from Earth's distant past.
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