Peridotite

Type Igneous Rock
Texture Phaneritic (Coarse-grained)
Origin Intrusive/Plutonic
Chemical Composition Ultramafic
Color Dark Gray to Black
Mineral Composition Pyroxene (Bronzite), Olivine
Tectonic Environment Upper mantle; sometimes obducted at continent-continent collision zones

 

Type Igneous Rock
Texture Phaneritic (Coarse-grained)
Origin Intrusive/Plutonic
Chemical Composition Ultramafic
Color Medium Green
Mineral Composition Olivine
Miscellaneous Also called “Dunite”
Tectonic Environment Upper mantle; sometimes obducted at continent-continent collision zones