Zusammenfassung der Ressource
rock groups
- Sedimentary
- Sandstone
- Limestone
- Worn down over time. Become
presses together on sea floor.
Mixed with dead sea creatures
- Igneous
- Granite
- Basalt
- Extrusive & intrusive - When magma/lava cools and hardens
- Metamorphic
- Quartzite
- Marble
- Heat and Pressure