Peridotite

Science / Geology / Peridotite: A dark-colored, coarse-grained igneous rock that is made up mainly of olivine and pyroxene, with very little quartz or feldspar. Picture of Peridotite.

Kimberlite

Science / Geology / Kimberlite: A variety of peridotite that is found in volcanic pipes which are thought to be intrusions from the upper mantle. Many diamond deposits are found in kimberlite pipes. MORE

Ultramafic Rock

Science / Geology / Ultramafic Rock: An igneous rock consisting dominantly of mafic minerals, containing less than 10 percent feldspar. Includes dunite, peridotite, amphibolite, and pyroxenite. MORE

Links
Home
Glossary
Thesaurus