Bible Dictionaries
Polyhalite

Webster's Dictionary

(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Polyhalite'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/polyhalite.html. 1828.