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The stability and natural occurrence of margarite
Mineralogical Magazine, 1971SummaryThe upper stability of margarite has been determined to be 450 °C at 1 kb and 530 °C at 2 kb total pressure (PH2O = Ptotal). Other experiments delimit in a general way the lower stability of this mineral and its paragenesis in more SiO2 rich compositions.
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Preiswerkite and Na-(Mg,Fe)-margarite in eclogites
Contributions to Mineralogy and Petrology, 1999Preiswerkite and Na-(Mg,Fe)-margarite are two unusual micas very rare in Nature. They have been observed together in two eclogite occurrences (La Compointrie, France; Liset, Norway) as retrogression products in coronae or symplectites around kyanite. The chemical compositions and some physical properties of these micas are presented. The possible solid
Gaston Godard, David Smith
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Plagioclase in margarite-bearing rocks
American Journal of Science, 1974M. Frey, P. M. Orville
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