| Pseudowollastonite | |
|---|---|
 White crystals of pseudowollastonite from Passau, Lower Bavaria, Germany | |
| General | |
| Category | Cyclosilicate |
| IMA symbol | Pwo |
| Strunz classification | 9.CA.20 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | C2/c |
| Identification | |
| Luster | Vitreous |
| Diaphaneity | Transparent |
| References | |
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 ß-Wollastonite, and cyclowollastonite.
It occurs in high temperature (pyrometamorphic) environments such as the Hatrurim Formation of the Negev Desert and the graphite mine at Pfaffenrenth near Hauzenberg, Bavaria. It also occurs in slags and cement.
References
- Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- Mineralienatlas
- ^ Pseudo wollastonite on Mindat.org
- 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
- Fleischer, M., 1973, New mineral names: Cyclowollastonite, American Mineralogist: 58: 560
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