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Dark, mafic rock is relatively rich in iron and magnesium.

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Laurence Aufderhar

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14y ago

Mafic igneous rocks, such as basalt, are relatively high in iron and magnesium.

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Q: Dark colored igneous rock rich in iron and magnesium?
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Are dark-colored igneous rocks rich in iron and magnesium?

Dark, mafic rock is relatively rich in iron and magnesium.


What is the dark colored igneous rock with rich in iron and magnesium?

These rocks are called mafic igneous rocks, such as basalt. == ==


Igneous rocks that are dense and dark colored they form from magma that is rich in iron and magnesium and poor in silica?

Igneous rocks that are dense and dark-colored are called basaltic rocks. They are formed from magma that is rich in iron and magnesium and poor in silica content.


What are dark colored often extrusive igneous rocks containing iron magnesium or calcium?

They are referred to as mafic, a word representing their magnesium and iron content.


Are basaltic igneous rocks high in iron and magnesium?

The dark colored igneous rocks that are rich in calcium and magnesium are called mafic igneous rocks. Basalt is one example of these. Their relative density is higher than three.


In general how does the density of a light colored igneous rock differ from that of a dark colored igneous rock?

Light-coloured igneous rocks, such as granite, have a higher silica content and lower iron and magnesium than darker ones, such as basalt. Since iron and magnesium are very dense minerals, this makes darker igneous rocks more dense than lighter ones.


What is the igneous rock that is dense and dark colored and forms from magma that is rich in iron and magnesium but poor in silica That has 8 letters?

basaltic


How does the density of a light colored igneous rock differ from that of a dark colored igneous rock?

Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.


Dense heavy dark-colored igneous rocks form from what magma?

Basalt froms from basaltic lava is heavy, dark-colored, dense lava. Basaltic lava is dark because it contains high amounts of iron and magnesium.


What is a mafic rock and what color is it?

A Mafic rock is a type of igneous rock that is rich in Iron and Magnesium instead of silica. The rocks are also darker in color like Basalt.


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.


How does the density of a light colored rock differ from the density of dark colored rock?

Normally, light colored igneous rocks are less dense compared to dark colored igneous rocks. This is because the light colored rocks have a less iron in them.