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Chemical Etching of Calcite Cleavages by Diluted Solutions

✍ Scribed by Dr. B.J. Mehta

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
283 KB
Volume
17
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

Very low concentration of mineral acids and monocarboxylic acid (less then 0.001%) produces triangular etch pits on calcite cleavages at dislocations intersecting the surface. The orienation of triangular etch pits is opposite with respect to percussion mark on calcite cleavages. This may be due to opposite process of percussion and reaction at very low concentrations. When percentage of water is slightly decreased in both above acids, rhombic etch pits were formed. The non‐coincidence of depth points and geometerical centres of rhombic etch pits are explained. The similarity of shape cycle will not hold at higher concentrations.

πŸ“œ SIMILAR VOLUMES

Eccentricity of symmetrical and asymmetr
Eccentricity of symmetrical and asymmetrical etch pits on calcite cleavages
✍ Dr. B. J. Mehta πŸ“‚ Article πŸ“… 1981 πŸ› John Wiley and Sons 🌐 English βš– 336 KB

## Abstract There are two types of chemical eccentric etch pits. Deepest points are always lying on the shorter diagonal. – Symmetrical etch pits the deepest points of which lying on the diagonals show dislocation lines in the plane (110). Eccentricity of symmetrical etch pits along the [110] dire