Kilauea and Mauna Loa are ________.

Nonmetallic minerals resources are commonly divided into two categories: building materials and ________.

Slate and schist are both derived by metamorphism of shales and mudstones.

Which of the following is made of microcrystalline quartz?

The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.

The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.

Which of the following best describes seamounts and islands of the deep ocean basins?

Changes in texture, composition, and other physical properties, after sediments are deposited, are collectively called ________.

Foliated metamorphic rocks are composed largely of equidimensional grains of minerals such as quartz and calcite.

________ only emit gas.