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...
Saved in:
Published in | Clays and clay minerals Vol. 50; no. 3; pp. 406 - 409 |
---|---|
Main Authors | , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Boulder, CO
The Clay Minerals Society
01.06.2002
Clay Minerals Society |
Subjects | |
Online Access | Get full text |
Cover
Loading…
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 |