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.[2][3]
It occurs in high temperature (pyrometamorphic) environments such as the Hatrurim Formation of the Negev Desert[2] and the graphite mine at Pfaffenrenth near Hauzenberg, Bavaria.[4] It also occurs in slags and cement.
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