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Pseudowollastonite : ウィキペディア英語版 | Pseudowollastonite
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''.〔(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 〕 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.〔Fleischer, M., 1973, ''New mineral names: Cyclowollastonite,'' American Mineralogist: 58: 560 〕 It also occurs in slags and cement. ==References==
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