melaphyre
/ˈmɛləfaɪər/Definitions
1. noun
A type of igneous rock that is the cooled and solidified lava from a volcano.
“The geologist examined the melaphyre samples to determine their composition.”
2. noun
A type of dark-colored, fine-grained volcanic rock.
“The hikers climbed over the melaphyre outcroppings to reach the summit.”