A rock consisting of granular red garnet, light green smaragdite, and common hornblende; -- so called in reference to its beauty.
Very rare, course grained, igneous rock with a chemical composition similar to that of basalt but noted for the presence of the rare, bright green pyroxene omphacite, and red, almandine-pyrope garnets.
A foliated metamorphic rock consisting of bright green pyroxene, actinolite, red garnet, and minor minerals.
A high pressure, high temperature metamorphic rock composed predominantly of garnet and clinopyroxene and which is compositionally equivalent to basalt.
An extremely high grade metamorphic rock containing the minerals garnet and pyroxene.
catazonal metamorphic rock deriving from basalt, composed of green pyroxene (diopside altered in amphibole) and kelifitized garnet (amphibole and plagioclase alteration).
metamorphic rock that forms from mafic rocks (like basalt and gabbro) under extremely high pressure. The main minerals present are garnet and a green pyroxene, giving the rock a characteristic, mottled red and green appearance. The most common environment where ecolgites form is deep in subduction zones, where subducted oceanic crust is put under very high pressures.
Eclogite (IPA: ) is a coarse-grained mafic (basaltic in composition) metamorphic rock. Eclogite is of special interest for at least two reasons. First, it forms at pressures greater than those typical of the crust of the Earth.
