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Click on image to enlarge. Specimen: Oliver Pluemper; Photo: Dan Snyder |
Eclogite hand specimen from Norway. Thanks to Oliver Pluemper,
University of Oslo, for the specimen. Optical scan. Specimen width 9.42
cm, height 7.3 cm.
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Click on image to enlarge. Specimen: Oliver Pluemper Photo: Dan Snyder |
Garnet (large, dark forms) and pyroxene (small and very small yellow and brown forms) in eclogite specimen shown in hand sample image above. This specimen, from the western Gneiss belt of Norway, has undergone significant deviatoric stress, which the garnet has resisted more effectively than has the pyroxene. XPL. Imaged area 2.7 mm by 4 mm.