PiroxenePiroxene or pyroxene is a silicate mineral that is found in many igneous and metamorphic rocks. Most of the mantle of the Earth is composed of pyroxene and olivine. |
A collection of stamps figuring photos or images of minerals, cristals, gems, rocks, fossils and meteorites from around the world.
PiroxenePiroxene or pyroxene is a silicate mineral that is found in many igneous and metamorphic rocks. Most of the mantle of the Earth is composed of pyroxene and olivine. |