Pseudowollastonite Knowpia

Pseudowollastonite
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.^[3]^[4]

It occurs in high temperature (pyrometamorphic) environments such as the Hatrurim Formation of the Negev Desert^[3] and the graphite mine at Pfaffenrenth near Hauzenberg, Bavaria.^[5] It also occurs in slags and cement.

References edit

^ 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
^ ^a ^b 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

[1] 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.

[2] Mineralienatlas

[Mindat-3] Pseudo wollastonite on Mindat.org

[4] 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

[5] Fleischer, M., 1973, New mineral names: Cyclowollastonite, American Mineralogist: 58: 560

[3]

[4]

[1]

[2]

[5]

Summary

References edit