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What mineral composition is most characteristic of felsic rocks?
Wiki User
∙ 11y ago
felsic is orthoclase, quartz, and biotite. mafic is olivine, pyroxene, and calcium rich plagioclase. I am still researching intermediate.
Wiki User
∙ 11y ago
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What mineral composition is most characteristic of mafic rocks?
olivine, pyroxene, and calcium-rich plagioclase
Why are mafic rocks denser than felsic rocks?
Mafic rocks are denser than felsic rocks because they contain heavier compounds, minerals and other materials, they are ferromagnesian in 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 the different colours in rocks?
The different colours are from different minerals. A reddish colour could be due to a mineral containing a lot of iron, for example. Weathering, staining, mineralogy and method of formation all play a part.
What are andesite rhyolite and trachyte all a type of?
They are all extrusive igneous (i.e. volcanic) rocks of intermediate to felsic composition.
What is the mafic mineral and felsic mineral?
First of all there is no such thing as a mafic or a felsic "mineral". There can be mafic and felsic rocks.Mafic rocks have a high magnesium and iron content.Felsic rocks enriched with lighter elements such as oxygen and silicon.
What mineral composition is most characteristic of mafic rocks?
olivine, pyroxene, and calcium-rich plagioclase
Definition for andesitic composition?
the composition of igneous rocks lying between felsic and mafic.
Is felsic porphyritic extrusive?
Some felsic rocks are and some are not. The term felsic is a description of an ingeous rock's composition, not its texture or where it occurs.
Can igneous rock be felsic?
Yes. Felsic is a term used to describe the composition of some igneous rocks.
Why are mafic rocks denser than felsic rocks?
Mafic rocks are denser than felsic rocks because they contain heavier compounds, minerals and other materials, they are ferromagnesian in composition.
Is coal mafic or felsic?
It is neither mafic or felsic, as these terms refer to the composition of igneous rocks, whereas coal is a sedimentary rock.
Is olivine mafic or felsic?
Olivine is a mafic mineral. It is most abundant in ultramafic rocks.
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 are mineral composition of rocks?
Mostly death
Is sandstone felsic or mafic?
Neither. The terms mafic and felsic refer to the composition of igneous rocks, which are dominated by silicate minerals. Marble is a metamorphic rock composed of carbonate minerals. The terms mafic and felsic do no apply to it.
How are basalt and granite different in their Orgin texture and mineral composition and how are they similar?
Both rocks are igneous rock but basalt is an aphanitic igneous rock while granite is a common type of felsic intrusive igneous rock.
