The World Around Us

Eclogite from Norway. A metamorphic rock, eclogite normally forms as a result of high temperature and pressure on igneous rocks as they enter the mantle in a subduction zone.

Pieces of eclogite from the Western Gneiss Region in Norway. The rock contains the minerals omphacite (green), pyrope-garnet (red), quartz (milky), kyanite (blue) and some phengite (golden white). A metamorphic rock, Eclogite normally forms as a result of high temperature and pressure on igneous rocks as they enter the mantle in a subduction zone.

Credit: After Woudloper