Iron-wollastonite from skarns and its stability relation in the CaSiO3-CaFeSi2O6 join
Iron-wollastonites from skarns have an approximate composition of Ca5FeSi6-O18. Iron-wollastonites and ordinary wollastonites from the Kagata mine are associated with clinopyroxenes of hedenbergite and ferrosalite compositions, respectively. This fact could be interpreted as that a miscibility gap e...
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| Veröffentlicht in: | GEOCHEMICAL JOURNAL 1973, Vol.7(2), pp.67-79 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Iron-wollastonites from skarns have an approximate composition of Ca5FeSi6-O18. Iron-wollastonites and ordinary wollastonites from the Kagata mine are associated with clinopyroxenes of hedenbergite and ferrosalite compositions, respectively. This fact could be interpreted as that a miscibility gap exists between iron-wollastonite of Ca5FeSi6-O18 composition and ordinary wollastonite. Thus iron-wollastonite of Ca5FeSi6-O18 composition appears to be a stable phase in the CaSiO3-CaFeSi2O6 join at temperatures as low as those of the skarn formation, probably 300°∼600°C. |
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| ISSN: | 0016-7002 1880-5973 |
| DOI: | 10.2343/geochemj.7.67 |