It has relatively high sodium and potassium levels compared to magnesium and calcium.
This rock is similar in composition to pegmatite and aplite, and it can be classified as I or S type. This rock is a common component of batholiths. It has relatively high sodium and potassium levels compared to magnesium and calcium. A finer-grained form is rhyolite. It is rich in alkali feldspars and (*) quartz. It is less dense than basalt, which causes oceanic plates to subduct below tectonic plates made of this type of rock. For 10 points, name this light-colored felsic igneous rock which makes up a major portion of the continental crust.
This rock is similar in composition to pegmatite and aplite, and it can be classified as I or S type.
granite