Stability of almandine in the system FeO
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I. Keesmann; S. Matthes; W. Schreyer; F. Seifert
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Article
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1971
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Springer
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English
β 816 KB
Almandine, although decomposing in the presence of metallic iron into the anhydrous subsolidus assemblage fayalite + ferrocordierite + hereynite solid solution at low pressures, melts incongruently to hercynitess -~ quartz + liquid at 10 kb. At pressures between about 12 and 20 kb the products of in