Exam 22: Minerals Rocks and Volcanoes

The two principal agents of metamorphism are pressure and _____________.

The color of the powder of a mineral is known as the mineral's

The Columbia Plateau in the northwestern United States is an example of a(n)

_____________, lava, and pyroclastics are the three general products emitted during a volcanic eruption.

When a mineral's surface reflects light in a manner similar to a smooth metal, the mineral is said to have a(n) ______________ luster.

Rocks solidified from molten material, either below or above ground, are classified as ______________ rocks.

About what percent of Earth's surface is covered by land?

If iron floats in liquid mercury, then the specific gravity of iron is

Laccoliths and sills are examples of ______________ plutons.

The study of rocks is called

The brilliancy of a gem is a function of its index of ______________.

Crater Lake, atop Mount Mazama in Oregon, occupies a volcanic

Molten rock material beneath Earth's surface is called

Which of the following is not generally used in mineral identification?

Conglomerate and breccia are classified as ______________ rocks.

Which of the following statements is false?

Rocks solidified from molten material below ground are classified as ______________ igneous rocks.

Which of the following is the softest mineral on the Mohs scale?

Gabbro and rhyolite are classified as ______________rocks.

Solids emitted by volcanoes can range in size from fine dust to boulders. Such solids are known collectively as ______________.