User:Strickja/Kalinite

Kalinite is a fibrous monoclinic type of alum distinct from isometric potassium alum, named in 1868 for its potassium content. Kalium is the Latin name for potassium (hence its chemical symbol, "K"). A proposal to discredit kalinite as a mineral species has been submitted to the International Mineralogical Association, but it is currently (March 2010) on the list of approved minerals. Many older samples, however, have been found to be potassium alum.

Environment
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, KFe3+3(SO4)2(OH)6, and cuprian melanterite (pisanite), (Fe2+,Cu2+)SO4·7H2O, at Quetena, Chile.

Unit Cell
Space Group: C2/c

Unit Cell Parameters : a=19.92 Å, b=9.27 Å, c=8.304 Å, β = 98.79°, Z=4