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Chemical Mineralogy of Common Mineral Groups
This site examines the crystal chemistry of some common mineral groups, including garnet, plagioclase, pyroxene, mica (muscovite and biotite), and amphibole. For each group, the topics considered include: the sites in the crystal structure on which the principal substitutions take place, the typical ranges of observed composition variation, how to assess the quality of analyses from looking at the stoichiometry of mineral formulas, how to estimate ferric iron, and any special considerations affecting formula recalculation. The computer models help illustrate the mineral crystal structures.
Intended for grade levels:
  • College (15-16)
Type of resource:
  • Visual:
    • Illustration - scientific
  • Text:
    • Ref. material
  • Geological Sciences:
    • Geochemistry
    • Mineralogy or petrology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
This Website and its contents are the property of The University of Oxford. The copyright in the material contained on this Website belongs to the University or its licensors.
DLESE Catalog ID: SERC-NAGT-000-000-000-725
Resource contact / Creator / Publisher:
Author: Prof Dave Waters
Department of Earth Sciences, University of Oxford