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What kind of texture will an igneous rock have if it cooled very quickly and you can not see crystals?
Wiki User
∙ 10y ago
The texture thus described is referred to as aphanitic texture.
Wiki User
∙ 10y ago
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The texture of an igneous rock depends on the size and shape of its?
crystals. If the crystals are large, the rock will have a coarse texture, and if the crystals are small, the rock will have a fine texture. The arrangement and interlocking of crystals also contribute to the texture of an igneous rock.
Is it extrusive rock that can have smooth texture because it is formed from lava that cooled so quickly that large crystals did not have time to form or is it intrusive?
It is extrusive rock that can have a smooth texture because it is formed from lava that cooled quickly on the Earth's surface, preventing large crystals from forming. Intrusive rocks form from magma that cools slowly beneath the Earth's surface, allowing larger crystals to develop.
Which igneous rock has larger crystal one that cooled slowly or one that cooled quickly?
Igneous rocks that cool slowly have larger crystals because there is more time for the crystals to grow and develop before the rock solidifies. In contrast, rocks that cool quickly have smaller crystals due to limited time for crystal growth during the rapid cooling process.
What igneous rocks does not have a glassy texture?
Granite, diorite, and gabbro are examples of igneous rocks that do not have a glassy texture. These rocks are formed from slowly cooled magma underground, allowing time for crystals to grow, giving them a coarse-grained appearance.
Do rocks that cool slowly from magma contain more crystals?
Yes, rocks that cool slowly from magma have more time for crystals to grow, resulting in a coarse-grained texture with larger crystals. In contrast, rocks that cool rapidly have a fine-grained texture with smaller crystals due to the lack of time for crystal growth.
The size of the mineral crystals found in an igneous rock is directly related to the?
the rate melted rock cools.
What is the difference in appearance between igneous rocks that have cooled slowly and igneous rocks that have cooled quickly?
Igneous rocks that have cooled slowly typically have larger crystals due to the longer cooling time, giving them a coarse texture. In contrast, igneous rocks that have cooled quickly have smaller crystals or may even be glassy in texture due to rapid cooling, which inhibits crystal growth.
The texture of an igneous rock depends on the size and shape of its?
crystals. If the crystals are large, the rock will have a coarse texture, and if the crystals are small, the rock will have a fine texture. The arrangement and interlocking of crystals also contribute to the texture of an igneous rock.
Why do andesite have small crystals?
Andesite is an Igneous Rock. It has small crystals because it cooled quickly d;D
What is the difference between an igneous rock with a glassy texture and one with a fine texture?
An igneous rock with a glassy texture forms when magma cools rapidly on the Earth's surface, resulting in no crystals forming. In contrast, an igneous rock with a fine texture forms when magma cools slowly underground, allowing small crystals to form.
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 feature in igneous rocks is the best indication of how rapidly the magma crystallized?
The size of mineral crystals is the best indication of how rapidly the magma crystallized in igneous rocks. Fine-grained rocks indicate rapid cooling, while coarse-grained rocks suggest slow cooling.
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.
Is it extrusive rock that can have smooth texture because it is formed from lava that cooled so quickly that large crystals did not have time to form or is it intrusive?
It is extrusive rock that can have a smooth texture because it is formed from lava that cooled quickly on the Earth's surface, preventing large crystals from forming. Intrusive rocks form from magma that cools slowly beneath the Earth's surface, allowing larger crystals to develop.
Do igneous rocks have large crystals?
It depends on the cooling rate of the magma. If the magma cools slowly underground, large crystals can form, creating intrusive igneous rocks. If the magma cools rapidly on the Earth's surface, small crystals or glassy textures can result in extrusive igneous rocks.
How do Igneous rock with glassy textures?
An igneous rock with a glassy texture cooled from its' liquid state very quickly, an example of this would be obsidian, a volcanic glass.
What observation about an igneous rock would support the inference that the rock cooled slowly underground?
The rock would have visible mineral crystals--a phaneritic texture.
