It indictes slow rate of cooling, solidification, and crystalization, as a result of depth of the magma. This implies that the rock is most likely to be an intrusive igneous rock.
It depends on the type of igneous rock. Intrusive igneous rocks such as granite have large crystals, extrusive igneous rocks may have small crystals as in basalt or no crystals as in pumice.
Such rocks are called porphyritic.
It's an igneous porphyry.
Intrusive
Yes, they can. Extrusive igneous rocks, which form outside the Earth's surface, often contain small or no crystals, because they cool quickly and the particles in the lava do not have much time to arrange themselves. Intrusive rocks, which form inside the Earth, generally have large crystals because they cool slowly. Granite is an example of an igneous rock with large crystals.
It depends on the type of igneous rock. Intrusive igneous rocks such as granite have large crystals, extrusive igneous rocks may have small crystals as in basalt or no crystals as in pumice.
Igneous rocks will develop large crystals is they cool slowly underground.
Igneous rocks will develop large crystals is they cool slowly underground.
Igneous rocks will develop large crystals is they cool slowly underground.
it tells you that the igneous rock formed in two stages,stage one occurred deep into the earth were large crystals formed from and then it eruptedas a volcano in stage two were small crystals formed
sedimantry
Such rocks are called porphyritic.
quartz
granite
It's an igneous porphyry.
Porphyrite of any composition, granite, gabbro, diorite. Most intrusive igneous rocks have crystals large enough to see with the naked eye. Another term used to define an igneous rock with large crystals is coarse-grained.
Intrusive