eclogite
/ˈɛkləˌdʒaɪt/
noun
- A dense, coarse-grained metamorphic rock composed mainly of garnet and pyroxene, formed under high pressure and temperature deep in the Earth's crust.
- Eclogite is often found in mountain belts where tectonic plates have collided.
- Geologists study eclogite to understand conditions deep inside the Earth.
- The rare green and red minerals in eclogite make it easy to identify.