Basalt
WordNet

noun


(1)   The commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene
WiktionaryText

Etymology


, a misspelling of , from , from , from Egyptian bauhan 'slate'.

Noun



  1. A hard rock of varied mineral content; volcanic in origin, it makes up much of the Earth's crust.
  2. A type of unglazed pottery.
 
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