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What are large grains of intrusive rock that cools down slowly?
Wiki User
∙ 12y ago
Intrusive Igneous rocks. Examples: obsidian, magma
Wiki User
∙ 12y ago
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How can you tell if a intrusive rock forms?
Large crystals are diagnostic of an intrusive igneous rock, as large crystals form as the source magma cools slowly.
Is micro granite intrusive or extrusive?
Granite is an intrusive type of igneous rock Also since it is intrusive it cools very slowly and forms large crystals and coarse (large) grained igneous rock.
What Igneous rocks have large crystals and form when melted rock cools slowly and hardens underneath earth's surface?
They are called intrusive igneous rocks.
Do intrusive rocks have large crystals because they cool quickly?
No. Intrusive igneous rocks have large crystals because they cool slowly.
Do intrusive rocks have fine grains small crystals or large crystals?
No, because intrusive rocks form underneath the earth and cool very slowly which causes larger minerals and extrusive rocks form above the ground which cool very rapidly which causes very small minerals. so i hope you get it. Now I'm done.
How can you tell if a intrusive rock forms?
Large crystals are diagnostic of an intrusive igneous rock, as large crystals form as the source magma cools slowly.
When magma cools slowly what type of grain do you get?
Large crystalline grains.
What are the properties of intrusive igneous rocks?
They have mineral grains of nearly equal size, and have large crystals because they were cooled slowly.
What kind of mineral has a large grains?
Intrusive
Is micro granite intrusive or extrusive?
Granite is an intrusive type of igneous rock Also since it is intrusive it cools very slowly and forms large crystals and coarse (large) grained igneous rock.
Which one has large grains between intrusive and extrusive igneous rocks?
intrusive
What Igneous rocks have large crystals and form when melted rock cools slowly and hardens underneath earth's surface?
They are called intrusive igneous rocks.
What is igneous rock formed in the Earth's crust?
Igneous rock formed in the earths crust is known as intrusive rock. The magma that forms it cools slowly and therefore, creates rock with large crystals. An example of an intrusive igneous rock is granite.
Large crystals with well-formed crystal faces tend to form when?
Large mineral crystals can form when magma is able to cool slowly underground, creating intrusive igneous rock.
What crystal large or small can help identify an igneous rock as intrusive or extrusive?
As a general rule extrusive igneous rock crystals are very small, often microscopic, as the rock cools very rapidly. Conversely intrusive magma often cools so slowly that sizeable crystals can develop.
What igneous rock is formed in the earth?
Igneous rock formed in the earths crust is known as intrusive rock. The magma that forms it cools slowly and therefore, creates rock with large crystals. An example of an intrusive igneous rock is granite.
What causes the difference in grain size between intrusive igenuous rocks and extrusive igenuous rocks?
Difference in temperature of the varying layers of the Earth's surface where either of the rocks solidify,causes difference in size of grains of rocks.When solidified below the Earth's surface,the grains are comparatively larger crystals than extrusive igneous ones.Intrusive rocks form underneath the Earth's surface(eg.,granite). Magma cools slowly so it has time to form large crystals.Extrusive rocks are ones that form from lava (blasted out of a volcano) so they cool very quickly, not allowing large crystals to form(eg.,obsidian).
