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Granitoid or granitic.
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What name is applied to a coarse grained felsic igneous rock?
pegmatite
Describe granite using the three characteristics geologists use to classify igneous rocks?
Granite is a felsic, coarse grained, intrusive igneous rock.
What is the difference between rhyolite and granite?
The difference is the size of grains. Rhyolite is the felsic igneous rock with fine-grained size. Whereas, granite is the equivalent in composition but with coarse-grained size.
What is felsite?
An igneous rock containing mostly feldspar and quartz.
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 name is applied to a coarse grained felsic igneous rock?
pegmatite
Describe granite using the three characteristics geologists use to classify igneous rocks?
Granite is a felsic, coarse grained, intrusive igneous rock.
Which igneous rock is composed of coarse grained crystals of quartz feldspar and mica?
Felsic igneous rocks (the lightest in color) are comprised mostly of quartz and potassium feldspar. Intermediate igneous rocks (somewhat darker than felsic) are made up of some quartz and potassium feldspar, but mostly plagioclase feldspar.
What are the types of volcanic rocks?
Igneous rocks exhibit three types of textures: coarse grained (intrusive), fine grained (extrusive), and porphyritic (two-stage solidification of mineral constituents). Chemically, they are categorized as felsic, mafic, or intermediate.
What are some examples of igneous rocks?
Igneous rocks are generally classified first on the basis of their formation (and therefore their texture) as intrusive or extrusive. Intrusive rocks are solidified from magma under the surface resulting in a visible crystalline texture, and extrusive igneous rocks are solidified from lava at or near the surface, resulting in a small or nearly invisible crystalline texture.Igneous rock can additionally be classified by general chemistry composition as felsic, intermediate, mafic, and ultramafic. Felsic rocks are higher in silica and aluminum. Maficrocks are higher in magnesium and iron.Examples of igneous rock include:pumicebasaltandesitewehrlitemonzoniteanorthositewelded tuffnepheline syeniteaplitewebsteritekimberlitegabbrodioritegranitebasanitetroctolitepegmatitediabasepicritelatitegranodioritetonaliteperidotiteignimbritehornblenditelampophyrephonolitedunitesyenitetachylytemonzogranitetephritegranophyreboniniterhyodacitetrachytecarbonatiteharzburgiteicelanditepyroxenitetrachyandesitefoidoliterhyoliteobsidianscoriaWords used to describe igneous rock or igneous rock typesinclude: ultramafic, mafic, intermediate, felsic, aphanitic, porphyritic, phaneritic, extrusive, intrusive, vesicular, glassy, coarse grained, fine grained, acidic, basic.
Is granite a glassy igneous rock?
Granite is not metamorphic, but an intrusive igneous rock formed from cooling magma.
What is the difference between rhyolite and granite?
The difference is the size of grains. Rhyolite is the felsic igneous rock with fine-grained size. Whereas, granite is the equivalent in composition but with coarse-grained size.
How does a granite and a gabbro differ?
Granite is a felsic intrusive igneous rock, its light in colour due to the predominance of acidic magma. while Gabbro is a mafic intrusive igneous rock, its dark in colour as a result of high ferromagnetic composition. They are both coarse grained but only differs basically in chemical composition of the magma.
Can igneous rock be felsic?
Yes. Felsic is a term used to describe the composition of some igneous rocks.
Uses for rhyolite?
Rhyolite is a fine grained textured igneous rock. Fine grained igneous rocks form rapidly at the surface, their crystals are to small to be seen by an unaided eye.
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 igneous rock family contains the highest proportion of silica?
Felsic igneous rock contains the highest proportion of silica. Granites are felsic igneous rocks.
