Continental crust minerals are generally described as which combination?

Continental crust minerals are generally described as which combination?

• A. Lighter and Less Dense
• B. Darker and More Dense
• C. Lighter and More Dense
• D. Darker and Less Dense

Answer: (A)

Continental crust minerals are predominantly light-colored and less dense. This reflects a felsic composition, with minerals like quartz, feldspar, and muscovite that are silica-rich and comparatively low in density. In contrast, oceanic crust is dominated by darker, denser mafic minerals such as pyroxene and olivine, which gives it a higher overall density and a darker appearance. Therefore, the combination that fits continental crust minerals is lighter in color and less dense. The other descriptions pair dark minerals with higher density or mix light color with high density, which doesn’t match the typical continental composition.

Continental crust minerals are predominantly light-colored and less dense. This reflects a felsic composition, with minerals like quartz, feldspar, and muscovite that are silica-rich and comparatively low in density. In contrast, oceanic crust is dominated by darker, denser mafic minerals such as pyroxene and olivine, which gives it a higher overall density and a darker appearance. Therefore, the combination that fits continental crust minerals is lighter in color and less dense. The other descriptions pair dark minerals with higher density or mix light color with high density, which doesn’t match the typical continental composition.