click below
click below
Normal Size Small Size show me how
Rocks
| Term | Definition |
|---|---|
| Igneous Rock | forms when magma or molten rock, cools and hardness |
| Magma | LAVA- Think of Lavagirl |
| Crystalline | highest cold point |
| Intrusive | magma cools below ground |
| Extrusive | magma cools below ground; larger crystals can form |
| Coarse-grained | mostly grained |
| Fine-grained | no big crystals |
| Porphyritic | rock with a mix of large and small crystals; granite is an example |
| Glassy | smoothness |
| Vesicular | air bubbles |
| Felsic | in light color |
| Mafic | in dark color |