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Andesite has small crystals because it cools quickly.
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∙ 11y ago
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Are large crystals found in diorite?
diorite crystals are large and andesite crystals are small
Compare the mineral composition of diorite with the mineral composition of andesite?
Both andesite and diorite are igneous rocks with an intermediate color index. Diorite; however, is intrusive and phaneritic, whereas andesite is aphanitic and extrusive. Andesite is said to be the extrusive equivalent of diorite. Diorite is made up of plagioclase feldspar and ferromagnesian mineral crystals, mainly amphibole. Contrarily, andesite may resemble rhyolite, meaning it presents a need for microscopic examination to see its mineral crystals. The two have a composition of plagioclase feldspar and amphibole, but it is much more difficult to detect in andesite.
What is andesite?
Andesite is an extrusive igneous or volcanic rock with an intermediate composition, meaning it has moderate levels of silica, magnesium, iron, and sodium. Andesite porphyry is andesite that contains visible crystals, indicating that it had already begun to cool before erupting.
Where would you expect to find an igneous rock with small crystals?
you would find igneous rocks with small crystals at the bottom of the volcano, this is because when the rocks crack. It brakes apart into igneous rocks
What are the size of granite crystals?
Small, because it cools slowly
Why do andesite have small crystals?
Andesite is an Igneous Rock. It has small crystals because it cooled quickly d;D
Are large crystals found in diorite?
diorite crystals are large and andesite crystals are small
Compare the mineral composition of diorite with the mineral composition of andesite?
Both andesite and diorite are igneous rocks with an intermediate color index. Diorite; however, is intrusive and phaneritic, whereas andesite is aphanitic and extrusive. Andesite is said to be the extrusive equivalent of diorite. Diorite is made up of plagioclase feldspar and ferromagnesian mineral crystals, mainly amphibole. Contrarily, andesite may resemble rhyolite, meaning it presents a need for microscopic examination to see its mineral crystals. The two have a composition of plagioclase feldspar and amphibole, but it is much more difficult to detect in andesite.
What is andesite?
Andesite is an extrusive igneous or volcanic rock with an intermediate composition, meaning it has moderate levels of silica, magnesium, iron, and sodium. Andesite porphyry is andesite that contains visible crystals, indicating that it had already begun to cool before erupting.
Where would you expect to find an igneous rock with small crystals?
you would find igneous rocks with small crystals at the bottom of the volcano, this is because when the rocks crack. It brakes apart into igneous rocks
What are the size of granite crystals?
Small, because it cools slowly
How can you use andesite?
Andesite is an igneous rock that can be used in the construction field. Andesite is used mainly for making tiles, bricks, or stones that are suitable for water or landscape gardens. They use andesite to make tiles because they are naturally slip resistant.
What are small crystals called?
Small crystals. :D
Why does igneous rock have bigger crystals and some have small crystals?
The reason why is because of where it comes from in a volcano and how fast it cools. If it cools slowly then it will have bigger crystals because the longer it has to cool the longer the crystals have to grow. So dose that answer your question
Why do you think that quick cooling makes small crystals form?
I think (and know) it is because there is less time for crystals to grow.
Are andesite grains small?
Andesite typically has a groundmass ~ 50% of grains <.25mm of metallic oxides and quartz interspersed with larger phenocrysts of pyroxene and plagioclase feldspar. Other accesory minerals may be present.
Why does andesite cool slowly?
Andesite cools quickly because it forms from material erupted onto the surface, and so is composed to a cool environment.
