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Felsic Rocks

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Which of the igneous rock types has the lowest silica content?

Ultramafic igneous rock contains the least silica.


Which igneous rock out of granite basalt andesite and peridotite has the lowest silica SiO2 content?

Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.


What igneous rock or magma has the lowest silica content?

Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.Read more: Which_igneous_rock_out_of_granite_basalt_andesite_and_peridotite_has_the_lowest_silica_SiO2_content


What is igneous rock color mainly determined by?

An igneous rock's color is mainly determined by its silica content.


An example of an igneous rock low in silica is granite?

Granite is actually high in silica, which is why it is considered a felsic igneous rock. An example of an igneous rock low in silica is basalt, which is mafic in composition and contains less silica than granite.


What is An igneous rock with a low silica content that flows easily?

Basalt.


How the silica content of Molten material affects the color of igneous rock's?

The more silica contained in a rock, the lighter in color it will be.


How the silica content of molten affects the color of igneous rocks?

The more silica contained in a rock, the lighter in color it will be.


How silica content of molten material affects the color of igneous rocks?

The more silica contained in a rock, the lighter in color it will be.


A light colored igneous rock with silica content and explosive eruptions?

The rock is likely rhyolite, which is a light-colored igneous rock with high silica content. Rhyolitic magma is viscous and tends to trap gas, leading to explosive eruptions with ash and pyroclastic flows. The high silica content of rhyolite contributes to its light color and explosive nature.


An igneous rock with a low silica content that flows easily?

Basalt is an igneous rock with low silica content that flows easily due to its low viscosity when molten. It often forms from volcanic eruptions and is found in oceanic crust and volcanic islands. Basalt is dark in color and fine-grained, with a composition of around 45-52% silica.


Would you expect a light gray igneous rock to be rich or poor in silica?

I would expect a light gray igneous rock to be rich in silica. Light gray color in igneous rocks is often associated with high silica content, which is typical of felsic or granitic compositions.