Vectors, components, and minerals

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Ionic substitutions in minerals are directed chemical displacements and may be treated as vector quantities. This approach, pioneered by J.V.Smith and J.B.Thompson Jr, has many advantages over the barycentric coordinates (such as Gibbs triangles). Planar vector diagrams for a given mineral group can have chemical limits, generally dictated by ionic charge and bounded by lines representing zero contents of individual ions, as well as narrower crystal-chemical limits, generally dictated by ionic radii and bounded by lines representing constraints such as all Si as tetrahedral and Mg as octahedral. A given vector does not necessarily imply that a given mineral will be correspondingly zoned chemically, unless the mineral's composition is very close to a chemical or crystal-chemical limit. -from Author

Original languageEnglish (US)
Pages (from-to)1033-1037
Number of pages5
JournalAmerican Mineralogist
Volume76
Issue number5-6
StatePublished - 1991

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Minerals
minerals
mineral
Crystals
crystal
triangles
crystals
Substitution reactions
diagrams
Ions
substitutes
substitution
diagram
radii
chemical
Chemical analysis
ion
ions

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Vectors, components, and minerals. / Burt, Donald.

In: American Mineralogist, Vol. 76, No. 5-6, 1991, p. 1033-1037.

Research output: Contribution to journalArticle

Burt, D 1991, 'Vectors, components, and minerals', American Mineralogist, vol. 76, no. 5-6, pp. 1033-1037.
Burt, Donald. / Vectors, components, and minerals. In: American Mineralogist. 1991 ; Vol. 76, No. 5-6. pp. 1033-1037.
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