Answer :
The rock appears to be a basalt which cooled from basaltic magma/lava.
What type of magma/lava does basalt cool from?
Basalt is an igneous rock that forms from the rapid cooling and solidification of basaltic magma/lava on the Earth's surface. Basaltic magma is typically low in silica content and has a high temperature, allowing it to flow easily.
As a result, basaltic lava erupts from volcanoes and spreads quickly, forming extensive lava flows. Basalt rocks have a fine-grained texture due to the rapid cooling process associated with volcanic eruptions. The minerals present in basalt are primarily plagioclase feldspar and pyroxene giving the rock its characteristic dark color.
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