Exam 22: Minerals, rocks, and Volcanoes

What is the hardness of quartz on the Mohs scale?

What is the hardness of fluorite on the Mohs scale?

Which of the following is not one of the major types of metamorphism?

Which of the following classes of rock is most likely to contain fossils?

Gas,lava,and pyroclastics are the three general products emitted during a(n)______________.

Rhombohedral cleavage is displayed by the mineral named

The saying "The present is the key to the past" is a simple way to state the basic geologic concept called ______________.

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

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

The term ______________ refers to the way in which a mineral breaks into splinters,irregularly shaped pieces,or shell-shaped surfaces.

Intrusive igneous rock formations that lie more or less parallel to older formations are said to be ______________.

A mineral that looks glassy is said to have a(n)______________ luster.

The most common rocks on Earth's surface are

A general name for an intrusive igneous rock formation is ______________.

Which of the following is ranked 7 on the Mohs scale?

Molten rock material on Earth's surface is known as ______________.

Which of the following is not one of the three basic types of materials emitted when a volcano erupts?

Which of the following is not one of the types into which rocks are classified?

The two principal agents of metamorphism are heat and ______________.

The largest plutons are called ______________.