Across
- 3. Rocks that have changed due to extreme pressure or heat
- 5. stone which is mostly made up of sand
- 6. a mineral which has a rich red colour
- 7. a black igneous rock which is common in video games such as Minecraft
- 8. melted rock that is located beneath the crust
Down
- 1. a mineral which is very common in both the crust and mantle
- 2. the mineral with the highest level of hardness
- 4. Rocks formed when molten rock solidifies
- 5. Rocks that are formed when lots of sediments are pushed together under extreme pressure