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Most dark-colored igneous rocks have a high density.

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Green Tremblay

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What property is common to most dark-colored igneous rocks?

Most dark-colored igneous rocks are mafic, which means they are rich in minerals like pyroxene, olivine, and amphibole. These minerals give the rocks their dark color due to higher iron and magnesium content. Additionally, dark-colored igneous rocks are typically extrusive, forming from rapid cooling at the Earth's surface.


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.


Light-colored igneous rocks are less what than dark-colored igneous rocks are?

less dense


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.


Basaltic igneous rocks are?

Light colored


What is dark colored rocks called?

igneous


Mafic igneous rocks tend to form?

Dark colored rocks.


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.


Light colored igneous rocks are less what than dark igneous rocks?

Dense. Light colored igneous rocks have lower density compared to dark colored igneous rocks due to their higher silica content, which results in slower cooling and the formation of larger crystals.


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.


Why are granitic igneous rocks light in color?

granitic igneous rocks are light colored because of a lower density than basaltic rocks


Light-colored igneous rocks that are rich in aluminum potassium silicon and sodium are called what rocks?

Felsic rocks are light-colored igneous rocks rich in aluminum, potassium, silicon, and sodium. Examples include granite and rhyolite.