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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.
What does obsidain's glassy texture indicate about how magma cooled?
It cooled quickly so no holes formed in it.
What determines how large the crystals in an igneous rock will be?
How fast the magma or lava cooled. How fast the rock cooled
What do the crystals that form in slowly cooled magma produce?
A crystal is a homogeneous solid substance that has a natural geometrically regular form. The crystals that form in slowly cooled magma produce large grains.
What is a hardened layer of magma called?
laccolith
A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
Is there magma on Mars?
No. Mars has cooled so that i can no longer produce magma.
What creates the crust?
cooled magma
Which rock type forms from cooled magma?
what type of rock is formed from magma and cooled on earth surface
How is magma and igneous rocks related?
Magma is molten rock, and igneous rock is cooled magma.
What rock comes directly from magma?
Igneous rock comes from cooled magma.
Is crust formed by cooled magma?
yes
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.
What is Igneous rock is made from?
They are made from cooled lava, because they come from volcano's, and the center of the earth, which has magma (lava) flowing around.no
What is the name of a magma cooled on the surface?
When magma cools on the surface it forms igneous rock.
Does heated magma rise or sink?
When magma is being heated it rises. When it is cooled, it sinks.
What does obsidain's glassy texture indicate about how magma cooled?
It cooled quickly so no holes formed in it.
