| A | B |
|---|
| igneous rock | Form as the result solidification of magma or lava |
| magma | Molten rock within Earth |
| lava | Molten rock at Earth's surface |
| rock texture | Size of mineral crystals |
| extrusive | Solidification on the Earth's surface |
| volcanic | Solidification on Earth's surface |
| fine-grained | Crystal sizes less than 1mm |
| glassy texture | Non-crystalline grain size |
| intrusive | Solidification within the Earth |
| plutonic | Solidification within the Earth |
| coarse-grained | Crystal sizes 1mm or larger |
| felsic | High in Aluminum |
| mafic | High in Iron & Magnesium |
