Exam 22: Minerals, Rocks, and Volcanoes

The brilliancy of a gem is a function of its

The softest mineral on the Mohs hardness scale is named ______________.

What is the hardness of diamond on the Mohs scale?

One main type of feldspar that contains potassium is

The existence of the Ring of Fire is best explained by the

A(n) ______________ is a cohesive aggregate of one or more minerals.

Mount Saint Helens is the type of volcano known as a(n) ______________.

The Hawaiian Islands and the Emperor seamount chain were formed when the Pacific plate rode over a(n) ______________.

Stalactites are

The scientist ______________ is generally regarded as "the father of geology."

Dripstone formations that form on cavern ceilings are called ______________.

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

The two principal agents of metamorphism are heat and ______________.

Particles of sand, mud, and rock fragments deposited along rivers, in lakes, and on the seafloors are called by the general term ______________.

Any naturally occurring, inorganic, crystalline substance with a fairly definite chemical composition is called a(n)

The sedimentary rock known as ______________ consists of deposits of calcium carbonate (calcite).

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

Gas, ______________, and pyroclastics are the three general products emitted during a volcanic eruption.

The fundamental silicon-oxygen compound is silicon dioxide, which is also called ______________.

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