ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Basalt
Definition:
A dark brown or green igneous rock, formed by the cooling and solidification of molten lava on or near the Earth's surface.
Source & ©: GreenFacts
Related words: Sedimentary rock(s) - Shale
ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ | 
