Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-24T05:29:31.926Z Has data issue: false hasContentIssue false
  • English
  • Français

Scarbroite, Al5(OH)13CO3·5H2O, compared with gibbsite and hydrotalcite

Published online by Cambridge University Press:  05 July 2018

G. W. Brindley
G. W. Brindley*
Affiliation:
Mineral Sciences Building, Pennsylvania State University, University Park, PA 16802, USA
Get access Rights & Permissions [Opens in a new window]

Summary

The composition of scarbroite, written in the form Al5(OH)13CO3·5H2O, suggests close crystal-chemical relations to gibbsite and to hydrotalcite and kindred minerals. Parametral relations a(S) ≃ 2b(G) and 3b(S) ≃ 5a(G), S = scarbroite, G = gibbsite, are obtained and are consistent with a hydroxy Al layer structure and interlayer carbonate anions and water molecules. Thermal transformations show two discrete hydrated phases with layer spacings near 8.5 and 7.65 Å and a third phase with initial spacing 6.65 Å which decreases progressively to 5.5 Å over the temperature range 100°–250 °C as decomposition proceeds. No clear break is observed between dehydroxylation and decarbonation.

Type
Research Article
Information
Mineralogical Magazine , Volume 43 , Issue 329 , March 1980 , pp. 615 - 618
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1980

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.)

References

Bardossy, (G.) and White, (J. L.), 1979. Science, 203, 355-6.CrossRefGoogle Scholar
Brindley, (G. W.) and Choe, (J. O.), 1961. Am. Mineral. 46, 771-85.Google Scholar
Brindley, (G. W.) and Comer, (J. J.), 1960. Mineral. Mag. 32, 363-5.Google Scholar
Duffin, (W. J.) and Goodyear, (J.), 1957. Nature, 180, 977 only.CrossRefGoogle Scholar
Duffin, (W. J.) and Goodyear, (J.) 1960. Mineral. Mag. 32, 355 62.Google Scholar
Nemecz, (E.) and Varju, (G.), 1967. Acta Geol. Acad. Sci. Hung. 11, 453-75. [M.A. 19-176]Google Scholar
Rouxhet, (P. G.) and Taylor, (H. F. W.), 1969. Chimia, 23, 480-5.Google Scholar
Saalfeld, (H.) and Wedde, (M.), 1974. Z. Kristallogr. 139, 129-35.CrossRefGoogle Scholar
Serna, (C. J.), White, (J. L.), and Hem, (S. L.), 1978a. J. Pharm. Sci. 67, 324-7.CrossRefGoogle Scholar
Serna, (C. J.), White, (J. L.), and Hem, (S. L.) 1978b. Ibid. 67, 1144-7.Google Scholar
Serna, (C. J.), White, (J. L.), and Hem, (S. L.) 1978c. Ibid. 67, 1179-81.Google Scholar
Vernon, (W. V.), 1892. Phil. Mag. 5, 178.CrossRefGoogle Scholar