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It is an achondrite meteorite from Mars. Orthopyroxenite is an ultramafic and ultrabasic rock that is almost exclusively made from the mineral orthopyroxene, the orthorhombic version of pyroxene and a type of pyroxenite. It can have up to a few percent of olivine and clinopyroxene .
Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene group, such as augite, diopside, hypersthene, bronzite or enstatite. Pyroxenites are classified into clinopyroxenites, orthopyroxenites, and the websterites which contain both types of pyroxenes (see diagram below).
Contents. hide. (Top) Structure. Chemistry and nomenclature. Pyroxene minerals. See also. References. External links. Pyroxene ( diopside) crystals from Afghanistan. The pyroxenes (commonly abbreviated Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.
Apr 23, 2023 · Contents. Pyroxenite Classification. Orthopyroxene. Clinopyroxene. Websterite. Pyroxenite Composition. Where is the Pyroxenite Located. Pyroxenite Uses. References. Pyroxenite Classification. There are three type of pyroxenite rock that areclinopyroxenites, orthopyroxenites, and the websterites.
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Aside from olivine, magnesium-rich (less than 30 percent iron) orthopyroxene is the commonest silicate in meteorites; it is a major constituent of most chondrites and an important component of mesosiderites and calcium-poor achondrites. For detailed physical properties, see pyroxene (table).
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Pyroxene > Orthopyroxene. A petrological term for Orthopyroxene Subgroup. Non-essential minerals - these minerals are common, sometimes major components, but are not always present: Olivine. Commonly used as a synonym for a member of the Fayalite-Forsterite Series, but more generally and properly ...
Olivine orthopyroxenite. Olivine is a common constituent in pyroxenite. The boundary between pyroxenite and peridotite is arbitrarily set at 40% olivine. Tappeluft, Norway. Width of sample 17 cm. Pyroxenite pebble on the southern coast of La Palma, Canary Islands. Width of sample 6 cm. Olivine orthopyroxenite. Tappeluft, Norway. Width of sample ...
