Journal of thermal analysis

, Volume 48, Issue 1, pp 135–139 | Cite as

Thermal differential diagnosis of mica mineral group

  • J. Schomburg
  • H. Zwahr


The following criteria can be used for differential diagnosis of mica mineral group: weight loss < 350°C; weight loss during dehydroxylation (500–1000°C); peak temperature of structural decomposition and formation of high temperature phases; course of dilatometric curves during dehydroxylation and structural decomposition interval (Fig. 1).

Using the single criteria by stepwise comparing a complete thermal differentiation is possible between the members of mica mineral group.


dilatometry DTA mica TG thermal transformation 


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  1. 1.
    W. Vedder and R. W. T. Wilkins, Amer. Mineralogist, Wash. 54 (1969) 482.Google Scholar
  2. 2.
    R. C. Mackenzie, Differential Thermal Analysis. Vol. 1–2, Academic Press, London 1970/1972.Google Scholar
  3. 3.
    J. Schomburg and M. Störr, Dilatometerkurvenatlas der Tonmineralrohstoffe. Akademie-Verlag, Berlin 1984, 89 p.Google Scholar

Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • J. Schomburg
    • 1
  • H. Zwahr
    • 1
  1. 1.DURTEC-Ingenieur-, Beratungs- und Laborgesellschaft mbHNeubrandenburgGermany

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