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Usually from the slow cooling of magma with a plentiful supply of material necessary for crystal growth, and space in which to grow.
A Gabbro.
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.
extrusive rocks cools faster because it is in open air or under the sea
Intrusive igneous rock.
Intrusive igneous rock.
when magma cools slowly it becomes extrusive igneous rock
Igneous Rock
rock because when the lava or magma cools slowly it starts to harden.
crystal
Igneous rock is what forms when magma cools and hardens.
When magma cools, it forms igneous rock.
a type of rock that forms when magma cools and hardens very slowly deep in earths crust...
Large crystals are diagnostic of an intrusive igneous rock, as large crystals form as the source magma cools slowly.
It forms igneous rock.
Igneous rock
igneous rock