Granite vs Basalt
Felsic intrusive versus mafic extrusive igneous rocks.
| Property | Granite | Basalt |
|---|---|---|
| Category | rocks | rocks |
| Mohs hardness | 6 – 7 | 5 – 6 |
| Specific gravity | 2.6 – 2.8 | 2.8 – 3 |
| Colour | Light coloured with dark speckles | Dark grey to black |
| Rock classification | igneous | igneous |
| Grain size | Coarse | Fine |
| Formation environment | Continental crust plutons | Oceanic crust, volcanic provinces |
| Common uses | Dimension stone, aggregate | Aggregate, crushed stone |