Report of the Association Internationale Pour L'Étude Des Argiles (AIPEA) Nomenclature Committee For 2001: Order, Disorder and Crystallinity in Phyllosilicates and the use of the "Crystallinity Index"

The purpose of this report is to describe the appropriate use of indices relating to crystallinity, such as the ‘crystallinity index’, the ‘Hinckley index’, the ‘Kübler index’, and the ‘Árkai index’. A ‘crystalline’ solid is defined as a solid consisting of atoms, ions or molecules packed together i...

Full description

Saved in:
Bibliographic Details
Published inClays and clay minerals Vol. 50; no. 3; pp. 406 - 409
Main Authors Guggenheim, Stephen, Bain, Derek C., Bergaya, Faíza, Brigatti, Maria F., Drits, Victor A., Eberl, Dennis D., Formoso, Milton L. L., Galán, Emilio, Merriman, Richard J., Peacor, Donald R., Stanjek, Helge, Watanabe, Takashi
Format Journal Article
LanguageEnglish
Published Boulder, CO The Clay Minerals Society 01.06.2002
Clay Minerals Society
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:The purpose of this report is to describe the appropriate use of indices relating to crystallinity, such as the ‘crystallinity index’, the ‘Hinckley index’, the ‘Kübler index’, and the ‘Árkai index’. A ‘crystalline’ solid is defined as a solid consisting of atoms, ions or molecules packed together in a periodic arrangement. A ‘crystallinity index’ is purported to be a measure of crystallinity, although there is uncertainty about what this means (see below). This report discusses briefly the nature of order, disorder and crystallinity in phyllosilicates and discusses why the use of a ‘crystallinity index’ should be avoided. If possible, it is suggested that indices be referred to using the name of the author who originally described the parameter, e.g. ‘Hinckley index’ or ‘Kübler index’, or in honor of a researcher who investigated the importance of the parameter extensively, e.g. ‘Árkai index’.
Bibliography:0009-8604(20020601)50:3L.406;1-
(QE) Geology
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0009-8604
1552-8367
DOI:10.1346/000986002760833783