| A | B |
|---|
| magma | molten rock inside Earth's crust |
| igneous rock | formed from the crystallization of magma |
| lava | magma that flows onto Earth's surface |
| extrusive | fine grained igneous rocks that cool quickly on Earth's surface |
| intrusive | coarse grained igneous rocks that cool slowly beneath Earth's surface |
| ultramafic | rocks such as peridotite which has low silica content and very high levels of iron and magnesium |
| porphyritic | rock with two different sized grains of the same mineral |
| mafic | rocks such as gabbro which is dark colored has low silica content and rich in iron and magnesium |
| pegmatite | vein of extremely large grained minerals |
| kimberlite | rare type of ultramafic that can contain diamonds |
| felsic | rocks such as granite which is light colored and has high silica content |
