Ultramafic

Ultramafic

Term describing the chemical composition of an igneous rock composed almost entirely of magnesium-rich and iron-rich minerals (e.g., olivine, pyroxenes) and minimal silica.

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Part of Speech: noun
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Industry/Domain: Astronomy
Category: Planetary science
Company: PSRD
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ultramafic

Natural environment; Volcano

Igneous rocks made mostly of the mafic minerals hypersthene, augite, and/or olivine.

ultramafic

Astronomy; Planetary science

Term describing the chemical composition of an igneous rock composed almost entirely of magnesium-rich and iron-rich minerals (e.g., olivine, pyroxenes) and minimal silica.

ultramafic

Geography; Physical geography

Rock that is rich in magnesium and iron content.

ultramafic

Mining; General mining; Mineral mining

Said of an igneous rock composed chiefly of mafic minerals, e.g., monomineralic rocks composed of hypersthene, augite, or olivine. Compare: hypermelanic; ultrabasic.

evening star

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A planet, not a star, that can be seen in the west just after sunset and it is usually Venus or Mercury.

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Saturn

Astronomy; Planetary science

A planet that is sixth in distance from the Sun and is the second largest planet in the Solar System.

Goddard

Astronomy; Planetary science

American scientist who was one of the first people to proposed that rockets could be used to travel into space.

interplanetary

Astronomy; Planetary science

Existing or happening between planets. A satellite that is launched from the Earth to orbit Mercury travels through interplanetary space.

Jupiter

Astronomy; Planetary science

The planet that is fifth in distance from Sun. It is the largest planet in the Solar System.

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