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Title: Chlorartinite, A Volcanic Exhalation Product Also Found in Industrial Magnesia Screed

Abstract

The volcanic exhalation product chlorartinite, [Mg{sub 2}(CO{sub 3})(H{sub 2}O)(OH)]Cl{center_dot}H{sub 2}O, has recently been found to be a minor, and in some samples a major, component of magnesia floors for industrial use. In order to be able to perform quantitative phase analysis using the Rietveld method, its crystal structure was determined from high-resolution synchrotron powder diffraction data by the global optimization technique of simulated annealing and Rietveld refinement. The final R{sub p} and R{sub wp} values are 5.23% and 6.56%, respectively. Chlorartinite crystallizes in the rhombohedral space group R3c (No. 161), with a = 23.14422 (16) {angstrom}, c = 7.22333 (5) {angstrom}, V = 3350.84 (5) {angstrom}{sup 3}, Z = 18. The building units of chlorartinite consist of MgO{sub 6} octahedra forming 15-membered puckered rings which are interconnected by CO{sub 3} triangular moieties. The rings are stacked to form a honeycomb-like three-dimensional framework structure with large isolated channels. Within the channels, free chlorine atoms and disordered water molecules are located.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930088
Report Number(s):
BNL-80724-2008-JA
Journal ID: ISSN 0021-8898; JACGAR; TRN: US0806700
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Crystallography; Journal Volume: 39
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; ANNEALING; ATOMS; BUILDINGS; CHLORINE; CRYSTAL STRUCTURE; DATA; DIFFRACTION; EXHALATION; FLOORS; MOLECULES; OPTIMIZATION; POWDERS; SPACE GROUPS; SYNCHROTRONS; UNITS; WATER; national synchrotron light source

Citation Formats

Sugimoto,K., Dinnebier, R., and Schlecht, T.. Chlorartinite, A Volcanic Exhalation Product Also Found in Industrial Magnesia Screed. United States: N. p., 2006. Web. doi:10.1107/S0021889806032109.
Sugimoto,K., Dinnebier, R., & Schlecht, T.. Chlorartinite, A Volcanic Exhalation Product Also Found in Industrial Magnesia Screed. United States. doi:10.1107/S0021889806032109.
Sugimoto,K., Dinnebier, R., and Schlecht, T.. Sun . "Chlorartinite, A Volcanic Exhalation Product Also Found in Industrial Magnesia Screed". United States. doi:10.1107/S0021889806032109.
@article{osti_930088,
title = {Chlorartinite, A Volcanic Exhalation Product Also Found in Industrial Magnesia Screed},
author = {Sugimoto,K. and Dinnebier, R. and Schlecht, T.},
abstractNote = {The volcanic exhalation product chlorartinite, [Mg{sub 2}(CO{sub 3})(H{sub 2}O)(OH)]Cl{center_dot}H{sub 2}O, has recently been found to be a minor, and in some samples a major, component of magnesia floors for industrial use. In order to be able to perform quantitative phase analysis using the Rietveld method, its crystal structure was determined from high-resolution synchrotron powder diffraction data by the global optimization technique of simulated annealing and Rietveld refinement. The final R{sub p} and R{sub wp} values are 5.23% and 6.56%, respectively. Chlorartinite crystallizes in the rhombohedral space group R3c (No. 161), with a = 23.14422 (16) {angstrom}, c = 7.22333 (5) {angstrom}, V = 3350.84 (5) {angstrom}{sup 3}, Z = 18. The building units of chlorartinite consist of MgO{sub 6} octahedra forming 15-membered puckered rings which are interconnected by CO{sub 3} triangular moieties. The rings are stacked to form a honeycomb-like three-dimensional framework structure with large isolated channels. Within the channels, free chlorine atoms and disordered water molecules are located.},
doi = {10.1107/S0021889806032109},
journal = {Journal of Applied Crystallography},
number = ,
volume = 39,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}