Stacking faults in cronstedtite and other kaolin-type silicates
Abstract
The structure of cronstedtite is formed by the the stacking together of silicate layers in a regular manner. Stacking faults, each consisting of a misplacement of a layer with respect to its neighbour, occur randomly throughout the crystal, causing streaking of spots on the x-ray diffraction pattern. Measurements of the extent of this streaking have been made using six crystals of cronstedtite, and the results interpreted in terms of Wilson's theory of diffraction by layer structures containing faults. Values of α, the probability of a layer being misplaced, have been found ranging from 0.08 to 0.30.
An alternative model of the disorder in terms of dissociated dislocations is put forward.
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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