Pseudowollastonite

Pseudowollastonite
General
Category Cyclosilicate
Strunz classification 09.CA.20

Pseudowollastonite is a high-temperature mineral phase of CaSiO3 and is polymorphous with wollastonite. Its formula can alternatively be written as Ca3Si3O9. Other names include wollastonite 7T, ß-Wollastonite, and cyclowollastonite.[1][2]

It occurs in high temperature (pyrometamorphic) environments such as the Hatrurim Formation of the Negev Desert[1] and the graphite mine at Pfaffenrenth near Hauzenberg, Bavaria.[3] It also occurs in slags and cement.

References

  1. 1 2 Pseudo wollastonite on Mindat.org
  2. Glossary of Geology, eds. Julia A. Jackson, James P. Mehl, and Klaus K. E. Neuendorf; American Geosciences Institute, 2011, 5th ed., p. 524 ISBN 978-0922152896
  3. Fleischer, M., 1973, New mineral names: Cyclowollastonite, American Mineralogist: 58: 560


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