Meaning of the word basalt in English

What does basalt mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

basalt

US /ˈbæs.ɑːlt/
UK /ˈbæs.ɒlt/
"basalt" picture

Noun

a dark, fine-grained volcanic rock that is rich in magnesium and iron and typically forms lava flows, columns, and other extrusive igneous structures

Example:
The Giant's Causeway in Northern Ireland is famous for its hexagonal basalt columns.
Volcanic eruptions often produce large quantities of basalt.