Abstract
SEVERAL etchants, usually consisting of aqueous solutions of organic acids, have been shown1–5 to produce etch pits at the points of emergence of dislocations on the rhombohedral cleavage faces of calcite crystals. Moreover, if the pits are particularly well defined it is often possible to deduce, from their internal structure, the plane and the direction in which the dislocation line runs through the crystal, a possibility of considerable interest to us since we are endeavouring to assess the role of line imperfections in the chemical reactivity of calcite.
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THOMAS, J., RENSHAW, G. & ROSCOE, C. Production of Dislocation Etch Pits on Calcite using Optically Active Etchants. Nature 203, 72–73 (1964). https://doi.org/10.1038/203072b0
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DOI: https://doi.org/10.1038/203072b0
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