Eclogite – Norway

£4.00£16.10 ex VAT

Eclogite is an uncommon metamorphic rock, composed of mainly two minerals, reddish-brown garnets and omphacite, a green pyroxene. Other minerals, such as blue kyanite  and white quartz may also be present. Over all, it is an attractive looking yet rare rock, with a vibrant green colouration with red garnets to break it up. These rocks come from Almenning, Norway. Specimens are supplied in card trays with labels and come available in 4 sizes.

We also supply Eclogite thin sections for microscope study which are available to buy HERE.

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    Return

    Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.

    Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
    Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.

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    Phone: +1 (23) 456 789

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Eclogite is an uncommon metamorphic rock. It typically forms from the high pressure metamorphism of mafic igneous rock such as basalt and gabbros at depths of 50km or more in the mantle or lower crust. It is composed of mainly two minerals, reddish-brown almandine or pyrope garnet crystals and the green sodium rich pyroxene omphacite. Other minerals, such as blue kyanite and white quartz may also be present. Isotope dating of the Norwegian eclogites in the 1970’s and 1980’s indicates they are early Palaeozoic (450-400 million years old) in age and this suggests they formed during the Caledonian orogeny, which formed the majority of the mountains in northern Britain and Scandnavia.
Studies have shown that western Norway had been dragged down to great depths beneath a thick pile of nappes that was building up as the mountain chain formed. The discovery, about ten years ago, of micro-diamonds in eclogites was remarkable and further proved high pressure and depths at which the rocks formed. They are too small to be seen with the naked eye, however, don’t expect one in your sample. These examples come from Almenning, Norway and are available in various sizes and come supplied in a card tray with a label.

We also supply Eclogite thin sections for microscope study which are available to buy HERE.

Weight 130 g
Specimen Size

1.5" x 1.5", 2" x 2", 3" x 2", 4" x 3"

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