Basaltic rock is a common extrusive volcanic rock. Fingal's Cave is a sea cave composed of basaltic rocks on the uninhabited island of Staffa, in the Inner Hebrides of Scotland. It has a naturally arched roof, and with the eerie sounds produced by the echoes of waves, it has the atmosphere of a natural cathedral.

Basaltic Rock

Basaltic rock is a common extrusive volcanic rock. Fingal's Cave is a sea cave composed of basaltic…