Exam 22: Minerals Rocks and Volcanoes

The appearance of a mineral's surface in reflected light is called its ______________.

New rocks that have had their original form altered by heat and pressure, but without melting, are classified as

Orthoclase and plagioclase are the two main types of

The study of minerals is called ______________.

Intrusive igneous rock formations that cut more or less vertically across older formations are said to be ______________.

Which of the following is not an igneous rock?

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

What is the hardness of diamond on the Mohs scale?

The deflection of one lithospheric plate beneath another plate with which it is colliding is called

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

Rhombohedral cleavage is displayed by the mineral named

A common scale for denoting a mineral's hardness is the

That each successive layer of sediments is deposited on top of the previous layer, and hence is younger than the lower layer, is a statement of the

The most violent volcanic eruption in recorded history was that of

The process of transforming sediment into sedimentary rock is called

The metamorphosis of limestone leads to

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

The asthenosphere is the region of Earth directly below the ______________.

Beneath Earth's lithosphere is a semimolten layer known as the

Rocks formed from consolidated sediment deposited in layers are known as _____________ rocks.