polyhalite
English
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “polyhalite”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)
Noun
polyhalite (uncountable)
- (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.
- 2019 October, James Abbott, “Esk Valley revival”, in Modern Railways, page 76:
- Shafts are now being sunk at Sirius Minerals' Woodsmith mine to extract polyhalite for use as an agricultural fertiliser, with much of the output exported.
Further reading
- David Barthelmy (1997–2024) “Polyhalite”, in Webmineral Mineralogy Database.
- “polyhalite”, in Mindat.org[1], Hudson Institute of Mineralogy, 2000–2024.
- “polyhalite”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
- “polyhalite”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.