Originally a German term for the unwanted salt layer found above the pure rock salt deposits at Stassfurt in Prussia. Abraum salts have since been found to be rich in Potassium chloride. The Isle of Wight also has significant abraum salt deposits.
Resources and Citations
- Oxford English Dictionary, Oxford University Press, Oxford, England, Compact Edition, 1971 Comment: origin date = 1873
- Website: www.bibliomanina.com/reference/webster