Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-11T03:45:29.075Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystallochemical classifications of phyllosilicates based on the unified system of projection of chemical composition: II. The chlorite group

Published online by Cambridge University Press:  09 July 2018

A. Wiewióra  and
Z. Weiss
A. Wiewióra
Affiliation:
Institute of Geological Sciences, Polish Academy of Sciences, Al. Zwirki i Wigury 93, 02-089 Warsaw, Poland
Z. Weiss
Affiliation:
Research Coal Institute, 716-07 Ostrava-Radvanice, Czechoslovakia
Get access Rights & Permissions [Opens in a new window]

Abstract

The classification and nomenclature of chlorites have been critically reviewed. A new classification based on the unified projection system of chemical composition has been proposed in which for the first time all trioctahedral, di-trioctahedral and dioctahedral species are included. The chemical composition of chlorites is controlled by the general crystallo-chemical formula: This is superior to the known formulae for the trioctahedral and dioctahedral chlorites. It has been shown that the chlorite end-member compositions of Bayliss (1975) project in one point of the projection field leaving many end-member compositions unnamed. As they correspond to the names used previously, a proposal is made to restore these names.

Type
Research Article
Information
Clay Minerals , Volume 25 , Issue 1 , March 1990 , pp. 83 - 92
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1990

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

Bailey, S.W. (1975) Chlorites. Pp. 191–263 in; Soil Components (J. E. Gieseking, editor). 2, Springer-Verlag, New York.CrossRefGoogle Scholar
Bailey, S.W. (1980) Summary of recommendations of AIPEA nomenclature committee on clay minerals. Am. Miner. 65, 1–7.Google Scholar
Bailey, S.W. (1988) Chlorites: structures and crystal chemistry. Pp. 347-403 in: Hydrous Phyllosilicates (Exclusive of Micas) (S. W. Bailey, editor). (Reviews in Mineralogy, vol. 19). Mineralogical Society of America, Washington, DC.CrossRefGoogle Scholar
Bayliss, P. (1975) Nomenclature of the trioctahedral chlorites. Can. Miner, 13, 178–180.Google Scholar
Brindley, G.W. & Gillery, F.H. (1956) X-ray identification of chlorite species. Am. Miner 41, 169–186.Google Scholar
Brown, B.E. & Bailey, S.W. (1963) Chlorite polytypism: II. Crystal structures of a one-layer Cr-chlorite. Am. Miner. 48, 42–61.Google Scholar
Foster, M.D. (1962) Interpretation of the composition and a classification of the chlorites. US Geol. Surv. Pap. 414-A, 1–33.Google Scholar
Newman, A.C.D. & Brown, G. (1987) The chemical constitution of clays. Pp. 1–128 in: Chemistry of Clays and Clay Minerals (A. C. D. Newman, editor). Mineralogical Society, London.Google Scholar
Pedro, G. (1970) Report of the AIPEA Nomenclature Committee. AIPEA Newsletter 4, 3–4.Google Scholar
Rule, A.C. & Bailey, S.W. (1987) Refinement of the crystal structure of a monoclinic ferroan clinochlore. Clays Clay Miner. 35, 129–138.Google Scholar
Rule, A.C. & Radke, F. (1988) Baileychlore, the Znend member of the trioctahedral chlorite series. Am. Miner. 73, 135–144.Google Scholar
Serdyuchenko, D.P. (1953) Chlorites, their chemical constitution and classification. Trudy Inst. GeoL Akad. Nauk SSSR 140, 340p (in Russian).Google Scholar
Shirozu, H. (1980) Cation distribution, sheet thickness, and O-OH space in trioctahedral chlorites–an X-ray and infrared study. Mineral. J. 10, 14–34.CrossRefGoogle Scholar
Shirozu, H. & Bailey, S.W. (1965) Chlorite polytypism: III. Crystal structure of an ortohexagonal iron chlorite. Am. Miner. 50, 868–885.Google Scholar
Shirozu, H. & Momoi, H. (1972) Synthetic Mg-chlorite in relation to natural chlorite. Mineral. J. 6, 464–476.Google Scholar
Steinfink, H. (1958a) The crystal structure of chlorite. I. A monoclinic polymorph. Acta Cryst. 11, 191–195.CrossRefGoogle Scholar
Steinfink, H. (1958b) The crystal structure of chlorite. II. A triclinic polymorph. Acta Cryst. 11, 195–198.CrossRefGoogle Scholar