Dunite is the olivine-rich endmember of the peridotite group of mantle-derived rocks. Dunite and other peridotite rocks are considered the major constituents of the Earth's mantle above a …

Dunite is an intrusive igneous rock of ultramafic composition and with a phaneritic texture. Dunite, also known as olivinite, is known for its coarse-grained texture and almost exclusive …

Dunite, light yellowish green, intrusive igneous ultramafic rock that is composed almost entirely of olivine. Dunite usually forms sills (tabular bodies intruded between other rocks) but may also …

Jun 25, 2023 · Dunite is a coarse-grained, pale green to olive-green, ultramafic intrusive igneous rock with more than 90% olivine. It also may have smaller amounts of pyroxene, spinel, …

Dunite is an ultramafic plutonic rock that is composed almost exclusively of olivine. “Ultramafic” means that mafic minerals form more than 90% on the rocks composition. Most common mafic …

Named by Hochstetter in 1864 from Dun Mountain, New Zealand. A peridotite comprising >90% olivine. Accessory chromite almost always present. Commonly used as a synonym for a …

A dunite is an ultrabasic igneous rock dominated by essential olivine (>90% volume), often with accessory clinopyroxene, orthopyroxene, spinel, ilmenite, and magnetite. Dunite is usually …

Mar 21, 2024 · Dunite is an ultramafic plutonic or intrusive igneous rock in which olivine exceeds 90% by volume. Ultramafic means it has at least 90% mafic minerals. Mafic minerals are dark …

Nov 13, 2015 · Dunite is an intrusive igneous rock that dominantly consists of coarse grains of the pale green mineral olivine. When the rock weathers, however, it typically appears a dull …

Dunite is a type of rock that is characterized by its high olivine content and is often found as veins within peridotite. It is believed to act as porous flow channels for the transportation of melt from …