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Glaucophanite

A rock classification type
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A rock containing more than 75% vol. of glaucophane or ferro-glaucophane. The name has previously been used as a synonym for glaucophane gneiss or glaucophane granofels with at least 50% vol. glaucophane or as a straight synonym of glaucophane schist.


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Unique IdentifiersHide

Mindat ID:
50036
Long-form identifier:
mindat:1:1:50036:6

Classification of GlaucophaniteHide

Mineralogy of GlaucophaniteHide

Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > Glaucophane◻Na2(Mg3Al2)Si8O22(OH)2
Ferro-glaucophane◻Na2(Fe2+3Al2)Si8O22(OH)2

Internet Links for GlaucophaniteHide

References for GlaucophaniteHide

Reference List:
Lacroix, A. (1941) Les glaucophanites de la Nouvelle-Calédonie et les roches qui les accompagnent, leur composition et leur genèse. Mémoires de l'Académie (royale) des sciences de l'Institut (imperial) Paris, 65, 1–103.
Triboulet, C. (1974) Les glaucophanites et roches associées de l'île de Groix (Morbihan, France): étude minéralogique et pétrogénétique. Contributions to Mineralogy and Petrology, 45 (1). 65-90 doi:10.1007/bf00371137
Reinsch, Dietmar (1979) Glaucophanites and eclogites from Val Chiusella, Sesia-Lanzo zone (Italian Alps) Contributions to Mineralogy and Petrology, 70 (3) 257-266 doi:10.1007/bf00375355
Carson, C.J.; Clarke, G.L.; Powell, R. (2000) Hydration of eclogite, Pam Peninsula, New Caledonia. Journal of Metamorphic Geology, 18 (1). 79-90 doi:10.1046/j.1525-1314.2000.00245.x(garnet glaucophanite forms from hydration of eclogite)
Gao, Jun, Klemd, R., Liu, Shengwei (2000) Eclogitization of glaucophanites by fluid infiltration. Science in China Series D: Earth Sciences, 43. 144-155 doi:10.1007/bf02911940
Zucali, M.; Chateigner, D.; Dugnani, M.; Lutterotti, L.; Ouladdiaf, B. (2002) Quantitative texture analysis of glaucophanite deformed under eclogite facies conditions (Sesia-Lanzo Zone, Western Alps): comparison between X-ray and neutron diffraction analysis. Geological Society, London, Special Publications, 200 (1). 239-253 doi:10.1144/gsl.sp.2001.200.01.14
Fettes, Douglas, Desmons, Jacqueline - Eds. (2007) Metamorphic Rocks - A Classification and Glossary of Terms. Cambridge University Press. 244pp.
Caby, R.; Buscail, F.; Dembélé, D.; Diakité, S.; Sacko, S.; Bal, M. (2008) Neoproterozoic garnet-glaucophanites and eclogites: new insights for subduction metamorphism of the Gourma fold and thrust belt (eastern Mali). Geological Society, London, Special Publications, 297 (1). 203-216 doi:10.1144/sp297.9
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