A route for the direct crystallization of dolomite

J.D. Rodriguez-Blanco; S. Shaw; L.G. Benning

doi:10.2138/am-2015-4963

A route for the direct crystallization of dolomite

J.D. Rodriguez-Blanco, S. Shaw, L.G. Benning

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Abstract

The direct crystallization of dolomite from an aqueous solution at temperatures between 60-220 Â°C was followed in situ through time-resolved synchrotron-based energy dispersive X-ray diffraction combined with off-line high-resolution imaging, X-ray diffraction and infrared spectroscopy. Crystalline CaMg(CO3)2 phases form through a three-stage process. In the first stage, a nanoparticulate magnesium-deficient, amorphous calcium carbonate (Mg-ACC) with a nominal formula of Ca0.606Mg0.394CO3â‹…1.37H2O forms. After a temperature dependent induction time, during stage 2 the Mg-ACC partially dehydrates and orders prior to its rapid (

Original language	English
Pages (from-to)	1172-1181
Number of pages	9
Journal	The American Mineralogist (Print)
Volume	100
Issue number	5-6
DOIs	https://doi.org/10.2138/am-2015-4963
Publication status	Published - May 2015

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POST-PEER-REVIEW-PUBLISHERS.PDFFinal published version, 1.3 MBLicence: CC BY

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title = "A route for the direct crystallization of dolomite",

abstract = "The direct crystallization of dolomite from an aqueous solution at temperatures between 60-220 {\^A}°C was followed in situ through time-resolved synchrotron-based energy dispersive X-ray diffraction combined with off-line high-resolution imaging, X-ray diffraction and infrared spectroscopy. Crystalline CaMg(CO3)2 phases form through a three-stage process. In the first stage, a nanoparticulate magnesium-deficient, amorphous calcium carbonate (Mg-ACC) with a nominal formula of Ca0.606Mg0.394CO3{\^a}‹…1.37H2O forms. After a temperature dependent induction time, during stage 2 the Mg-ACC partially dehydrates and orders prior to its rapid (",

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AU - Shaw, S.

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AB - The direct crystallization of dolomite from an aqueous solution at temperatures between 60-220 Â°C was followed in situ through time-resolved synchrotron-based energy dispersive X-ray diffraction combined with off-line high-resolution imaging, X-ray diffraction and infrared spectroscopy. Crystalline CaMg(CO3)2 phases form through a three-stage process. In the first stage, a nanoparticulate magnesium-deficient, amorphous calcium carbonate (Mg-ACC) with a nominal formula of Ca0.606Mg0.394CO3â‹…1.37H2O forms. After a temperature dependent induction time, during stage 2 the Mg-ACC partially dehydrates and orders prior to its rapid (

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DO - 10.2138/am-2015-4963

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JO - The American Mineralogist (Print)

JF - The American Mineralogist (Print)

IS - 5-6

ER -

A route for the direct crystallization of dolomite

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