Basanite is a geological term that refers to a type of volcanic rock. Also known as tephrite, this igneous rock is dark in color with a fine-grained texture. It is typically composed of several minerals such as plagioclase feldspar, nepheline, olivine, and augite. While basanite is primarily used in scientific contexts, it can be beneficial to know some synonyms for this word. Some alternatives could include tephrite, alkalic rock, and volcaniclastic rock. Other related terms could include igneous rock, volcanic rock, and extrusive rock. By being familiar with these synonyms, you can better understand scientific descriptions and conversations that reference basanite.