Surprisingly, the composition of a rhyolite is almost exactly the same as a granite. However, one of the key differences is that rhyolites may contain more potassium, and little muscovite, whereas granites contain muscovite. Both come from magma, just magmas that have different mineral composition.
How Are Granite And Rhyolite Similar – Micro B Life
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What are the similarities of granite and rhyolite?
Granite and rhyolite are both types of felsic rocks. They are similar in their makeup and characteristics. Granite contains feldspar and quartz rocks as well as the silicate minerals mica and amphibole. Silicate minerals are common and made up of silicon and oxygen.
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What is one difference between the igneous rocks rhyolite and granite?
The difference is rhyolite has much finer crystals. These crystals are so small that they can not be seen by the naked eye. Rhyolite is an extrusive igneous rock having cooled much more rapidly than granite, giving it a glassy appearance. The minerals that make up rhyolite are quartz, feldspar, mica, and hornblende.
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What is the difference between granite and rhyolite quizlet?
Both are igneous rocks that have the same composition. Granite forms deep beneath the surface and therefore is coarse-grained. Rhyolite forms at much shallower depths and thus is fine-grained.
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What is the composition of granite and rhyolite?
Granites and rhyolites consist predominantly of quartz and potash feldspar; gabbros and basalts, predominantly of pyroxene and plagioclase feldspar. Other rock types have intermediate mineral compositions.
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What is the difference between granite and rhyolite?
Hint: Rhyolite and granite have similar composition. The difference between them is that rhyolite is an intrusive igneous rock whereas granite is an extrusive igneous rock. 0ne is formed within the earth’s crust, another is formed near or on the earth’s surface.
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What is one difference between the igneous rocks rhyolite and granite?
The difference is rhyolite has much finer crystals. These crystals are so small that they can not be seen by the naked eye. Rhyolite is an extrusive igneous rock having cooled much more rapidly than granite, giving it a glassy appearance. The minerals that make up rhyolite are quartz, feldspar, mica, and hornblende.
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What are 2 differences between rhyolite and basalt?
Rhyolite is a sticky or viscous lava that usually does not flow very far from the place where it is erupted. In contrast, basalt is a volcanic rock that contains relatively little silica and abundant iron and magnesium, so phenocrysts of olivine and pyroxene are common. Basalt is usually black to dark brown in color.
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What is the difference between granite and diorite quizlet?
Diorite is made of equal parts of light and dark crystals, whereas granite has more light crystals and fewer dark crystals.
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What are the similarities between granite and rhyolite?
Granite and rhyolite have the same mineral composition, but their grain size gives each a distinct appearance. The key difference between intrusive and extrusive igneous rocks—the size of crystals making them up—is related to how rapidly melted rock cools.
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What is the similarity and difference between granite and rhyolite?
Surprisingly, the composition of a rhyolite is almost exactly the same as a granite. However, one of the key differences is that rhyolites may contain more potassium, and little muscovite, whereas granites contain muscovite. Both come from magma, just magmas that have different mineral composition.
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Is rhyolite the same as granite?
Rhyolite is extrusive equivalent of granite magma. It is composed predominantly of quartz, K–feldspar and biotite. It may have any texture from glassy, aphanitic, porphyritic, and by the orientation of small crystals reflecting the lava flow.
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What is the composition of granite and rhyolite?
Granites and rhyolites consist predominantly of quartz and potash feldspar; gabbros and basalts, predominantly of pyroxene and plagioclase feldspar. Other rock types have intermediate mineral compositions.
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What is the composition of granite?
The chemical composition of granite is typically 70-77% silica, 11-13% alumina, 3-5% potassium oxide, 3-5% soda, 1% lime, 2-3% total iron, and less than 1% magnesia and titania. Volcanic rock of equivalent chemical composition and mineralogy is called rhyolite.
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How are rhyolite and granite similar?
Granite and rhyolite are both types of felsic rocks. They are similar in their makeup and characteristics. Granite contains feldspar and quartz rocks as well as the silicate minerals mica and amphibole. Silicate minerals are common and made up of silicon and oxygen.
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What igneous composition is rhyolite?
| Type | Igneous Rock |
|---|---|
| Origin | Extrusive/Volcanic |
| Chemical Composition | Felsic |
| Color | Light Gray |
| Mineral Composition | Potassium Feldspar, Quartz, Sodium Plagioclase, Biotite, Hornblende |
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What igneous composition is granite?
Granite is a common, coarse-grained, hard igneous rock consisting chiefly of quartz, orthoclase or microcline, and mica.
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What is the difference between rhyolite and granite?
Hint: Rhyolite and granite have similar composition. The difference between them is that rhyolite is an intrusive igneous rock whereas granite is an extrusive igneous rock. 0ne is formed within the earth’s crust, another is formed near or on the earth’s surface.
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What is the difference between granite and rhyolite quizlet?
Both are igneous rocks that have the same composition. Granite forms deep beneath the surface and therefore is coarse-grained. Rhyolite forms at much shallower depths and thus is fine-grained.
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What is the difference between the two types of igneous rocks?
The two main categories of igneous rocks are extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet.
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What are the similarities between rhyolite and granite?
The chemical composition of rhyolite is very like that of granite. This equivalence implies that at least some and probably most granites are of magmatic origin. The phenocrysts of rhyolite may include quartz, alkali feldspar, oligoclase feldspar, biotite, amphibole, or pyroxene.
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