%0 Journal article
%A Pannach, Melanie
%A Paschke, Iris
%A Schmidt, Horst
%A Freyer, Daniela
%A Voigt, Wolfgang
%T Crystallization of metastable monoclinic carnallite, KCl·MgCl2·6H2O: missing structural link in the carnallite family
%R 10.1107/S2053229620005197
%R 10.23689/fidgeo-4586
%J Acta Crystallographica Section C
%V 76
%N 5

%X During evaporation of natural and synthetic K–Mg–Cl brines, the formation of almost square plate-like crystals of potassium carnallite (potassium chloride magnesium dichloride hexahydrate) was observed. A single-crystal structure analysis revealed a monoclinic cell [a = 9.251 (2), b = 9.516 (2), c = 13.217 (4) Å, β = 90.06 (2)° and space group C2/c]. The structure is isomorphous with other carnallite-type compounds, such as NH4Cl·MgCl2·6H2O. Until now, natural and synthetic carnallite, KCl·MgCl2·6H2O, was only known in its orthorhombic form [a = 16.0780 (3), b = 22.3850 (5), c = 9.5422 (2) Å and space group Pnna].
%U http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8932
%~  FID GEO-LEO e-docs