One of the mysteries of the English language finally explained.
A fine-grained white mineral consisting of hydrated magnesium sulfate, occurring often in salt mines in Europe and India.
- ‘Bish and his Los Alamos colleagues believe that the proportion and distribution of hexahydrite, kieserite and other magnesium sulfate salts on Mars may hold a record of past changes in climate and whether or not water once flowed there.’
- ‘Translucent crystalline mass of kieserite with white alteration products.’
- ‘Crystal chemical aspects of the Mg-sulfate hydrate mineral kieserite, which has been identified on the Martian surface.’
Mid 19th century: from the name of Dietrich G. Kieser (1779–1862), German physician, + -ite.
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