Langbeinite
Template:Short description Script error: No such module "redirect hatnote". Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters".
Langbeinite is a potassium magnesium sulfate mineral with the chemical formula K2Mg2(SO4)3. Langbeinite crystallizes in the isometric-tetartoidal (cubic) system as transparent colorless or white with pale tints of yellow to green and violet crystalline masses. It has a vitreous luster. The Mohs hardness is 3.5 to 4 and the specific gravity is 2.83. The crystals are piezoelectric.[1]
The mineral is an ore of potassium and occurs in marine evaporite deposits in association with carnallite, halite, and sylvite.[1]
It was first described in 1891 for an occurrence in Wilhelmshall, Halberstadt, Saxony-Anhalt, Germany, and named for A. Langbein of Leopoldshall, Germany.[1][2]
Langbeinite gives its name to the langbeinites, a family of substances with the same cubic structure, a tetrahedral anion, and large and small cations.
Related substances include hydrated salts leonite (K2Mg(SO4)2·4H2O) and picromerite (K2Mg(SO4)2·6H2O).
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".