Kalinite is a mineral composed of hydrated potassium aluminium sulfate (a type of alum). It is a fibrous monoclinic alum, distinct from isometric potassium alum, named in 1868. Its name comes from kalium (derived from Arabic: çÃÂÃÂÃÂÃÂÃÂÃÂÃÂàal-qalyah "plant ashes", which is the Latin name for potassium, hence its chemical symbol, "K".
A proposal to remove recognition of kalinite as a mineral species was submitted to the International Mineralogical Association; however, kalinite is still on the list of approved minerals. Many older samples, however, have been found to be potassium alum.
Kalinite is a rare secondary mineral observed in the oxidized zone of mineral deposits, as efflorescence on alum slates, in caves, and as a volcanic sublimate. It is associated with jarosite, KFe<sup>3+</sup><sub>3</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub>, and cuprian melanterite (pisanite), (Fe<sup>2+</sup>,Cu<sup>2+</sup>)SO<sub>4</sub>÷7H<sub>2</sub>O, at Quetena, Chile.