- Of or pertaining to basalt.
Variant of basalt
- a dark, fine-grained, usually extrusive igneous rock that is more basic than andesite, consisting chiefly of plagioclase feldspars and pyroxene: often found in vast sheets, it is the most common extrusive igneous rock
- a kind of unglazed, black pottery designed by Josiah Wedgwoodalso basaltware
Origin of basaltearlier basaltes ; from Classical Latin a dark Ethiopian marble: term used by Pliny for basanites ; from Classical Greek basanitēs, species of slate used to test gold ; from basanos, touchstone, test (ult. ; from Egyptian bḫnw) + -itēs, -ite