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The crystal structure of glauberite, CaNa2(SO4)2
Published/Copyright:
July 28, 2010
Abstract
The crystal structure of glauberite has been determined from precession data taken on a spherical single crystal. The mineral is monoclinic and its space group is C2h6–C2/c. There are four molecules per unit cell. The parameters, determined by diffractometer data and refined by the least-squares method, are: a = 10.158 Å, b = 8.333 Å, c = 8.551 Å, β = 112°20′. The SO4−− tetrahedra are “regular”. Ca atoms are surrounded by eight O atoms placed at the corners of an irregular square antiprism. The Na atoms, binding seven oxygens, form very distorted octahedra with one centered face. The final discrepancy index R is 9.0%.
Published Online: 2010-07-28
Published in Print: 1965-11
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Articles in the same Issue
- Crystal structure of magnesium potassium sulfate hexahydrate MgK2(SO4)2 · 6H2O
- The crystal structure of glauberite, CaNa2(SO4)2
- Beziehungen zwischen den Strukturen der Modifikationen des Platin- und Kupferphthalocyanins und einiger Chlorderivate*
- Über die Epitaxie von Vitamin B12 auf Quarz
- The crystal structure of arsenic tribromide*
- Stacking faults in cronstedtite and other kaolin-type silicates
- Crystal chemistry of alpha-boron derivatives
- The crystal and molecular structure of bis(hydrazine)zinc bis(hydrazincarboxylate-N′,O)
- The crystal and molecular structure of chrysazin
- Hydrogen bonding in o-aminophenol hydrochloride
- Bestimmung der Struktur von Diphenantridylmethan mit der Methode der diffusen Streuung*
- A simple stereographic plotting table
- Elastische und thermoelastische Eigenschaften von CaSO4 · 2H2O (Gips)
- The unit cell and space group of gadolinium molybdate and of scandium tungstate
- An x-ray study of 2,5-dichloro-nitrobenzene
- The space group of anhydrous copper propionate
- An x-ray study of 3-nitro 4-toluidine
- Space group and unit-cell dimensions of 7-chloro, 4-methyl coumarin
- Crystal structures.
- Exhibition of Photographs of Crystallographic Interest
