Metamorphic Rocks Mastery Quiz

1. Which type of non-foliated metamorphic rock is granular and made of quartz?

Slate

Quartzite

Schist

Marble

Quartzite is a non-foliated metamorphic rock that is granular and composed mainly of quartz. Marble is a metamorphic rock made of calcite or dolomite, Slate is a foliated metamorphic rock, and Schist is a foliated metamorphic rock typically containing micas.

Explanation

Quartzite is a non-foliated metamorphic rock that is granular and composed mainly of quartz. Marble is a metamorphic rock made of calcite or dolomite, Slate is a foliated metamorphic rock, and Schist is a foliated metamorphic rock typically containing micas.

2. What is the term used for when minerals or grains can be forced under stress to line up in a nonrandom orientation?

Crystallization

Lithification

Foliation

Stratification

Foliation is the process where minerals or grains are aligned in a nonrandom orientation due to stress within rocks, while lithification is the process of turning loose sediments into solid rock. Stratification refers to the layering of rock formations, and crystallization is the formation of solid crystals from a liquid, gas, or solution.

Explanation

Foliation is the process where minerals or grains are aligned in a nonrandom orientation due to stress within rocks, while lithification is the process of turning loose sediments into solid rock. Stratification refers to the layering of rock formations, and crystallization is the formation of solid crystals from a liquid, gas, or solution.

3. Which type of metamorphic rock is shown below?

C. gneiss

A. Slate

B. Schist

D. Quartzite

The correct answer is gneiss because of its distinct banding and because it typically forms from the metamorphism of granite or other light-colored rocks.

Explanation

The correct answer is gneiss because of its distinct banding and because it typically forms from the metamorphism of granite or other light-colored rocks.

4. Which of the following is NOT a type of non-foliated metamorphic rock?

. d. quartzite

C. Phyllite

A. Slate

D. Quartzite

Gneiss is a type of foliated metamorphic rock, not non-foliated.

Explanation

Gneiss is a type of foliated metamorphic rock, not non-foliated.

5. A calcium-rich non-foliated rock that is often associated with economically valuable mineral deposits is _____?

Gneiss

Slate

Marble

Quartz

Gneiss is a calcium-rich non-foliated rock that is associated with economically valuable mineral deposits due to its mineral composition and formation process. Marble, Quartz, and Slate are different types of rocks that do not fit the description provided in the question.

Explanation

Gneiss is a calcium-rich non-foliated rock that is associated with economically valuable mineral deposits due to its mineral composition and formation process. Marble, Quartz, and Slate are different types of rocks that do not fit the description provided in the question.