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What is the igneous rock that cooled too quickly for a crystal structure to form?
Pinksprinkles33
Volcanic glass or obsidian is a quickly cooled igneous rock without a mineral crystal structure.
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∙ 14y ago
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What is the difference in appearance between igneous rocks that have cooled slowly and igneous rocks that have cooled quickly?
Igneous rocks that cooled slowly are intrusive. Igneous rocks that cooled quickly are extrusive. Intrusive rocks form larger crystals, because the crystals have a longer time to grow. Extrusive rocks have small to no crystals, because they had little or no time to grow/form.
What crystal shape does obsidian have?
Quartz belongs to the hexagonal crystal system.
Why does obsidian rock contain no crystals?
obsidian doesnt crystalize because it was formed under water.
What feature in igneous rocks is the best indication of how rapidly the magma crystallized?
The size of the crystals. Large crystals mean the magma cooled slowly, small crystals are a sign that the magma was cooled quickly.
Why do some rocks have crystal?
it all depends on the rate of cooling and crystallisation and the type of rock
Which igneous rock has larger crystal one that cooled slowly or one that cooled quickly?
i thing becaUSE THEY ARE COOLED
Why Is the crystal in igneous rock small if it cools quickly from magma?
The crystals within don't have as much time to grow when igneous rock is cooled more quickly as in extrusive igneous formation.
What does crystal size mean?
In igneous rocks, large crystals mean that the rock cooled more slowly. Smaller crystals mean that the rock cooled more quickly.
If the lava cools quickly the crystal are what?
If lava cools quickly, the minerals don't have as much time to form crystals, so the crystals do not become very large. Igneous rocks that cooled quickly and have small crystals are described as "aphanitic" igneous rocks.
What is an igneous rock that cooled very quickly called?
lava
What is the difference in appearance between igneous rocks that have cooled slowly and igneous rocks that have cooled quickly?
Igneous rocks that cooled slowly are intrusive. Igneous rocks that cooled quickly are extrusive. Intrusive rocks form larger crystals, because the crystals have a longer time to grow. Extrusive rocks have small to no crystals, because they had little or no time to grow/form.
What is the structure of an igneous rock?
the structure of an igneous rock is metamorphic rock that has been heated rapidly and turned into magma then cooled to create igneous rock its gay
What crystal shape does obsidian have?
Quartz belongs to the hexagonal crystal system.
What types of rocks are formed from a quickly cooled lava flow?
Cooled lava produces extrusive igneous rock.
Where does crystal come from?
Crystals come on by igneous rocks. Igneous rocks were heated up by lava. Then the rocks cooled and broke. Inside them were crystals.
What are the charicteristics of igneous rocks?
Igneous rocks are nearly always composed of silicate minerals and have an interlocking crystalline structure. The size of the crystals depends on how quickly the rock has cooled. Igneous rocks that cool near or on the surface may also contain gas bubbles.
Why would granite have larger crystals than igneous rocks formed from lava cooled above earths surface?
I think igneous rock have a larger crystal than all the others because igneous rock is all the way at the bottom of earth surface and it keeps cool of or hot at the same time.
