polyhalite
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.
Noun
- 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.
- 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. - 2019 October, James Abbott, “Esk Valley revival”, in Modern...
Origin
From German Polyhalit, from Ancient Greek πολύς (polús) + Ancient Greek ἅλς (háls) + -ite. Polyhalite is unrelated to halite other than name.