Assertion: basalt | /r/HasProperty | igneous rock
Facets:
Source sentences:
text: Basalt is an igneous rock that contains more than 45 and less than 52% of SiO 2 and less than five percent of total alkalies (K 2 O + Na 2 O)3.
text: India Abstract A hard, dense, inert rock found worldwide, basalt is an igneous rock, which is solidified volcanic lava Cast Chat
text: Basalt is an igneous rock formed from the rapid cooling of basalt lava exposed to the surface of the earth.