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The layer of moon that is composed of magnesium, iron,silicon (not silica) is called Crust.It is outermost layer of the moon. It also contains Calcium,Aluminum and Oxygen.

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What rock in the igneous family are medium colored and have no silica?

Igneous rocks that are medium colored and have no silica are called mafic rocks. They are mainly composed of magnesium and iron.


What is about 1802 miles thick and composed of silica iron magnesium and other minerals?

The Earth's mantle is approximately 1802 miles thick and is composed of silica, iron, magnesium, and other minerals. The mantle lies between the Earth's core and its crust, and plays a key role in the movement of tectonic plates and the Earth's heat distribution.


Largest layer of earth's surface's composed mostly of silicon oxygen magnesium and iron?

Oceanic crust.


What are the largest layer of earths surface composed mostly of silicon oxygen magnesium and iron?

The largest layer of Earth's surface that is composed mostly of silicon, oxygen, magnesium, and iron is the mantle. The mantle is located between the Earth's crust and core and makes up about 84% of Earth's volume.


What is the largest layer in earth's surface composed mostly of silicon oxygen magnesium and iron?

The largest layer in Earth's surface composed mostly of silicon, oxygen, magnesium, and iron is the mantle. The Earth's mantle is a solid-rock layer that lies between the crust and the core. It is rich in minerals such as olivine, pyroxene, and feldspar, which contain these elements.


What are meteorites comprised of?

It depends on the type of meteorite: Stony meteorites are composed of Iron and Magnesium silicates. Stony-Iron meteorites are compose of silicates and Iron and Magnesium metals. Iron meteorites are primarily composed of Iron and Magnesium metals and Iron suphides.


What is the largest layer of earth's surface composed mostly of silicon oxygen magnesium and iron?

it's mantle


Igneous rocks like gabbro and basalt are silica-deficient with high magnesium and iron?

Yes, this is true. The rocks in question are 'Mafic' or 'Basic'. Mafic minerals are often dark in colour, and are indeed composed of Iron, with a good portion of Magnesium and other elements. They are Silica/Quartz deficient, and also note that the mineralogy makes Basaltic lava particularly runny, as opposed to Andesitic lava, with high Silica, which is very viscous.


Which layer is composed of silicates of metallic compounds?

The mantle layer of the Earth is composed of silicates of metallic compounds. This layer lies between the Earth's core and crust and is rich in compounds like olivine and pyroxene that contain silicon and oxygen along with metallic elements like magnesium and iron.


Is the solid layer of earth made up of mostly iron?

No, the solid layer of Earth (the crust) is mostly composed of silicate minerals such as oxygen, silicon, aluminum, and magnesium. Iron is more abundant in the Earth's core and mantle rather than in the crust.


Largest layer of earth's surface composed mostly of silicon oxygen magnesiusm and iron?

Mantle.Earth's largest layer is the mantle.


Outer Core?

only liquid layer of the earth