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Is and igneous rock low in silica dark colored or light colored?
Generally, igneous rocks that are low in silica are dark relative to those that are high in silica. This tendency is largely the result of rocks low in silica having increased iron. Iron minerals tend to adsorb significant amounts of the visible spectrum and hence appear dark. I want to emphasize that this is a general tendency and there are exeptions -- obsidian which is very high in silica is typically a dark to black rock and a special igneous rock call carbonatite is very light in color but has little silica.
Which of the igneous rock types has the lowest silica content?
Ultramafic igneous rock contains the least silica.
What igneous rock family contains the highest proportion of silica?
Felsic igneous rock contains the highest proportion of silica. Granites are felsic igneous rocks.
What does high silica content magma form?
When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
Relationship between silica content and overall color of igneous rock?
They both are the color of an igneous rock.
What color will igneous rock with high levels of silica be?
An igneous rock with a high level of silica will have a light color.
Is and igneous rock low in silica dark colored or light colored?
Generally, igneous rocks that are low in silica are dark relative to those that are high in silica. This tendency is largely the result of rocks low in silica having increased iron. Iron minerals tend to adsorb significant amounts of the visible spectrum and hence appear dark. I want to emphasize that this is a general tendency and there are exeptions -- obsidian which is very high in silica is typically a dark to black rock and a special igneous rock call carbonatite is very light in color but has little silica.
Which of the igneous rock types has the lowest silica content?
Ultramafic igneous rock contains the least silica.
What are the terms felsic and mafic used by geologists to describe?
They are descriptive terms as to the relative silica content of igneous rocks. Igneous rock which is high in silica is referred to as felsic. Igneous rock which is relatively low in silica is referred to as mafic.
What is A light colored igneous rock with high silica context explosive eruptions?
majority
What igneous rock family contains the highest proportion of silica?
Felsic igneous rock contains the highest proportion of silica. Granites are felsic igneous rocks.
An example of an igneous rock low in silica is granite?
False. Basalt would be an example of an igneous rock with a low silica content.
What does high silica content magma form?
When it cools and crystallizes into rock, the rock will be described as felsic igneous rock. Examples of felsic igneous rocks are granite, rhyolite, and pumice.
What is acidic rock?
In geology, the term acid rock refers to an igneous rock which is relatively high in silica.
Is silica an igneous rock?
No. Silica is not a rock; it is a component of many minerals found in all three rock types.
What is light colored ofrten intrusive igneous rock containing a high percentage of silica are called?
felsic
What is igneous rock color mainly determined by?
An igneous rock's color is mainly determined by its silica content.
