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Glassy igneous rocks form when magma cools too fast for mineral grains to grow?
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∙ 11y ago
yes
Wiki User
∙ 11y ago
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Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a?
glassy texture
What type rock forms when magma cools and hardens?
Igneous Rock is formed when magma cools and hardens. It depends on whether it cools above ground or under ground for the size of the mineral crystals forming inside it.
Which igneous rock cools the fastest glassy aphanitc pegmatic and porphyritic?
Glassy igneous rocks cool the fastest. The most likely had more nucleation. Pegmatic cooled the slowest, which is why its crystals are larger than 1 cm. Phaneritic is the next slowest in cooling. Porphyritic has slow then rapid cooling, while aphanitic igneous rocks also have rapid cooling.
What is a common igneous rock with coarse grains that forms when magma cools slowly underground it is extremely hard and durable good for building?
A Gabbro.
Does melted rock that cools quickly result in igneous rock with large mineral crystals?
No, melted rock that cools quickly result in igneous rock with large minerals because large crystals take time to form and the rocks that usually have them are the ones that were formed inside the earth.
Do Glassy igneous rocks form when magma cools too fast for mineral grains to grow?
yes
Do Glassy igneous rocks form when magma cools so slowly that mineral crystals cannot grow?
The "glassy" igneous rock is called obsidian, and it occurs when the magma cools very rapidly.
If igneous rock cools off slowly then its mineral grains will be?
Rough and coarse.
When igneous rocks from a volcanic eruption cools what does it form?
When igneous rocks from a volcanic eruption cool, they can form either intrusive or extrusive rocks. Intrusive igneous rocks form when magma cools slowly beneath the Earth's surface, resulting in larger mineral grains. Examples include granite and diorite. Extrusive igneous rocks form when lava cools quickly on the Earth's surface, resulting in smaller mineral grains. Examples include basalt and pumice.
Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a?
glassy texture
What type rock forms when magma cools and hardens?
Igneous Rock is formed when magma cools and hardens. It depends on whether it cools above ground or under ground for the size of the mineral crystals forming inside it.
What kind of mineral does magma form when it cools?
When magma cools, it forms igneous rock.
Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rock with a?
glassy texture, hope this helps :)
If lava cools to quickly that ions don't have time to arrange themselves into crystals will form what?
glassy texture, hope this helps :)
Which rocks are extrusive igneous rocks where do they form?
Extrusive igneous rocks are formed when magma reaches the Earth's surface and cools. Since this magma is exposed to air and/or water, it cools very quickly, creating finer-grained, sometimes glassy rocks. Obsidian and pumice are both extrusive igneous rocks. Conversely, intrusive igneous rocks, like granite, are created when magma cools in the Earth's crust, which is a slower process.
Why is the texture of obsidian is best contain few or no minerals grains?
Obsidian cools so quickly the mineral grains do not have time to form.
What are large grains of intrusive rock that cools down slowly?
Intrusive Igneous rocks. Examples: obsidian, magma
