Obsolete form of basalt.

plural of basalte

Of or pertaining to basalt.

(mineralogy) A hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust. / A type of unglazed pottery.

plural of basalt

A town in Colorado. / A city and town in Idaho.

Fluid rock material of basaltic origin

(geology) An alkaline variety of basalt.

plural of alkali basalt

plural of basaltic magma