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acidic igneous rocks have over 63% silica contents.examples are rhyloite andgranite.Rhyolite is volcanic while granite is plutonic igneous rock
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∙ 13y ago
Acidic igneous rocks, also known as felsic rocks, are composed primarily of light-colored minerals such as quartz, feldspar, and mica. These rocks have a high silica content and typically have a lower iron and magnesium content compared to mafic rocks. Examples of acidic igneous rocks include granite and rhyolite.
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What this different between acid igneous rock and basic igneous rock?
Acidic Rocks are those that have silica content. Basic rocks are ricj and iron and magnesium
What are the chemical formula of the igneous rock?
Rocks are mixtures and so do not have chemical formulas. Igneous rocks vary in composition, so there is no way of giving a formula.
Igneous rocks that crystallize from magma and that are composed almost entirely of quartz and feldspar have a composition that is?
Granitic Composition
How are igneous rocks classified acording to their..?
Igneous rocks are classified by either being intrusive or extrusive, then mafic or felsic then they are classified by either fine grain or course grained textures.
What causes igneous rocks to get darker?
Chemical composition. Especially when Basic\Mafic.
What this different between acid igneous rock and basic igneous rock?
Acidic Rocks are those that have silica content. Basic rocks are ricj and iron and magnesium
What igneous rocks have a mineral composition between that of granitic and basaltic rocks?
Andesitic igneous rock.
How can igneous rocks be different densities?
Igneous rocks vary greatly in composition and method of formation, resulting in diverse densities.
Definition for andesitic composition?
the composition of igneous rocks lying between felsic and mafic.
How do we classify rocks as igneous and sedimentary and metamorphic?
composition, how it is formed
What can you conclude from the color of igneous rocks?
Their origin, and chemical composition.
Igneous rocks are classified based upon their composition and what?
texture
How does chemical composition effect igneous rocks?
It affects the color.
Why do igneous rocks that have the same composition sometimes have different sizes of mineral grains?
This is as a result of difference in the rate of cooling of the Igneous rocks.
Can igneous rock be felsic?
Yes. Felsic is a term used to describe the composition of some igneous rocks.
What is the clear definition for acidic energy?
Acidic mean designating or of igneous rocks with more than 66% silica.
What are the chemical formula of the igneous rock?
Rocks are mixtures and so do not have chemical formulas. Igneous rocks vary in composition, so there is no way of giving a formula.
