An iron-containing mineral which occurs in saline deposits as colourless, pale rose, violet, or yellow granular masses.
Rinneite is a chloride of iron(ii), potassium, and sodium, K₃NaFeCl₆. Crystal system: trigonal.
Early 20th century; earliest use found in Journal of the Chemical Society. From the name of Friedrich Rinne, German mineralogist + -ite, after German Rinneit.