Century Dictionary and Cyclopedia
- A mineral or salt occurring in masses of a fibrous structure, of a brick-red color, being tinged with iron. It is a hydrous sulphate of calcium, magnesium, and potassium. It is found at Ischl in Austria, and also at Berchtesgaden in Bavaria.
- n. mineralogy A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda.
GNU Webster's 1913
- n. (Min.) A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda.
“That boom has the blessing of the national government, whose regional growth fund awarded Cleveland Potash a £15-million $23.4-million grant to build a polyhalite processing facility in the Tees Valley.”
“Weeks later, however, the company said that the first drilling work had found a seam of polyhalite that was four times thicker than expected.”
“It is targeting the deep layer of polyhalite - a material that can be processed in potash fertilizer - that Sirius also plans to extract.”
“The potassium salts like carnallite, langbeinite, polyhalite, and sylvite are found in ancient lake and sea beds.”
These user-created lists contain the word ‘polyhalite’.
List of minerals, elements, group names and geochemistry terms encountered in the science of mineralogy. I've chosen to avoid capital letters in most examples, though a great many mineral names hon...
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