Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-19T23:04:06.904Z Has data issue: false hasContentIssue false
  • English
  • Français

Some observations on the properties of dypingite, Mg5(CO3)4(OH)2·5H2O, and related minerals

Published online by Cambridge University Press:  05 July 2018

J. H. Canterford ,
G. Tsambourakis  and
B. Lambert
J. H. Canterford
Affiliation:
CSIRO, Division of Mineral Chemistry, PO Box 124, Port Melbourne, Vic, 3207, Australia
G. Tsambourakis
Affiliation:
CSIRO, Division of Mineral Chemistry, PO Box 124, Port Melbourne, Vic, 3207, Australia
B. Lambert
Affiliation:
Causmag International (Devex Limited), PO Box 438, Young, NSW, 2594, Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

Dypingite, Mg5(CO3)4(OH)2·5H2O, was found in materials obtained during the production of high purity magnesia from crude magnesite by the calcination/CO2-leaching process. The snow-white, finely crystalline dypingite contained 41.0% MgO; the theoretical value is 41.5%. The X-ray powder data revealed a long period structure with a strong peak at 31.0 Å. The five strongest reflections (Å) and their estimated intensities (I/I0) were 10.4 (100), 31.0 (40), 15.62 (40), 5.86 (30), and 6.34 (20). The DTA curve showed ten endothermic reactions with maxima at 43, 50, 77, 86, 105, 127, 180, 260, 420, and 514°C and an exothermic reaction at 495°C.

Type
Research Article
Information
Mineralogical Magazine , Volume 48 , Issue 348 , September 1984 , pp. 437 - 442
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

Author to whom correspondence should be addressed.

References

Canterford, J. H., Everson, P. T., and Moyle, F. J. (1981) Proc. Australs. Inst. Mining Met. no. 277, 45–52.Google Scholar
Canterford, J. H., Everson, P. T. and Moorrees, C. O. (1983) Ibid. 288, 29–36.Google Scholar
Davies, P. J., and Bubela, B. (1973) Chem. Geol. 12, 289–300.CrossRefGoogle Scholar
Dell, R. M., and Weller, S. W. (1959) Trans. Faraday Soc. 55, 2203-20.CrossRefGoogle Scholar
Friedel, B. (1975) Neues Jahrb. Mineral Monatsh. 196.Google Scholar
Hill, R. J., Canterford, J. H., and Moyle, F. J. (1982) Mineral Mag. 46, 453-7.CrossRefGoogle Scholar
Kazakov, A. V., Tikhomirova, M. M., and Plotnikova, V. I. (1959) Int. Geol. Rev. 1 (10), 1–39.CrossRefGoogle Scholar
Langmuir, D. (1965) J. Geol. 73, 730-54.CrossRefGoogle Scholar
Raade, G. (1970) Am. Mineral. 55, 1457-65.Google Scholar
Sawada, Y., Uematsu, K., Mizutani, N., and Kato, M. (1978) Thermochimica Acta. 27, 45–59.CrossRefGoogle Scholar
Sawada, Y., Yamaguchi, J., Sakurai, O., Uematsu, K., Mizutani, N., and Kato, M. (1979) Ibid. 33, 127-40.Google Scholar
Suzuki, I., and Ito, M. (1973) J. Japan Assoc. Miner. Petr. Econ. Geol. 68, 353-61.CrossRefGoogle Scholar