It has a low silicon content and therefore is not as viscous as granitic minerals.
Because it has a high melting temperature, this type of mineral is the first to crystallize in the Bowen reaction series. It has a low silicon content and therefore is not as viscous as granitic minerals. Minerals in its class include calcium feldspar, olivine, and pyroxene, which are high in Iron, Magnesium, and Calcium--which makes them a dark green to black color. FTP, name this hard, dense, dark volcanic rock often having a glassy appearance.
Because it has a high melting temperature, this type of mineral is the first to crystallize in the Bowen reaction series.
{Basalt} (accept {basaltic} minerals, prompt on early buzz of {“olivine”})