Dark, mafic rock is relatively rich in iron and magnesium.
Mafic igneous rocks, such as basalt, are relatively high in iron and magnesium.
These rocks are called mafic igneous rocks, such as basalt. == ==
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.
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.
Basalt froms from basaltic lava is heavy, dark-colored, dense lava. Basaltic lava is dark because it contains high amounts of iron and magnesium.
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.
Dark, mafic rock is relatively rich in iron and magnesium.
These rocks are called mafic igneous rocks, such as basalt. == ==
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.
They are referred to as mafic, a word representing their magnesium and iron content.
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.
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.
basaltic
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.
Basalt froms from basaltic lava is heavy, dark-colored, dense lava. Basaltic lava is dark because it contains high amounts of iron and magnesium.
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.
Igneous rocks that are medium colored and have no silica are called mafic rocks. They are mainly composed of magnesium and iron.
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.