The size of the crystals. Large crystals mean the magma cooled slowly, small crystals are a sign that the magma was cooled quickly.
Intrusive igneous rocks by definition, are formed and set underground. As well as the well-crystallized Granites and Basalts, they also include rapidly-chilled rocks such as dykes and sills.Extrusive igneous rocks have been deposited on the Earth's surface, and include all the usual volcanics.
cool rapidly
Cool rapidly
False
Granite and basalt are the most common types of igneous rock. Igneous rock types, or classifications, also include those that are intrusive and extrusive. Intrusive igneous rock is formed from the solidification of slow cooling magma below the surface. Extrusive igneous rock is formed for the solidification of rapidly cooling lava at or near the surface.
Intrusive igneous rocks by definition, are formed and set underground. As well as the well-crystallized Granites and Basalts, they also include rapidly-chilled rocks such as dykes and sills.Extrusive igneous rocks have been deposited on the Earth's surface, and include all the usual volcanics.
Extrusive igneous rock.
no
the structure of an igneous rock is metamorphic rock that has been heated rapidly and turned into magma then cooled to create igneous rock its gay
It's called extrusive igneous rock--rapidly solidified lava.
cool rapidly
coarse texture
cool rapidly
Cool rapidly
The answer is pitchstone. it is and igneous rock.
false
A fine grained igneous rock forms from Lava that escapes from the earth crust to the surface and cools and solidifies rapidly.