FREE CPG Mineralogy & Petrology Questions and Answers

Question 1

What is the basic building block of minerals?

Accepted Answer

Crystals

Answer

Rocks

Answer

Sediments

Answer

Fossils

Question 2

Which mineral group does quartz belong to?

Accepted Answer

Silicates

Answer

Carbonates

Answer

Oxides

Answer

Sulfides

Question 3

What type of rock is formed from cooled magma or lava?

Accepted Answer

Igneous

Answer

Sedimentary

Answer

Metamorphic

Answer

Foliated

Question 4

Which process transforms sedimentary or igneous rocks into metamorphic rocks?

Accepted Answer

Metamorphism

Answer

Weathering

Answer

Erosion

Answer

Deposition

Question 5

What is the Mohs scale used for?

Accepted Answer

Hardness ranking

Answer

Density measurement

Answer

Color classification

Answer

Chemical composition

Question 6

What characteristic is used to identify minerals besides hardness?

Accepted Answer

Luster

Answer

Texture

Answer

Grain size

Answer

Porosity

Question 7

Which mineral is known for its perfect cleavage and is commonly found in granite?

Accepted Answer

Mica

Answer

Quartz

Answer

Feldspar

Answer

Calcite

Question 8

What does porphyritic texture in igneous rocks indicate?

Accepted Answer

Two-stage cooling

Answer

Rapid cooling

Answer

Slow cooling only

Answer

Metamorphic alteration

Question 9

How are sedimentary rocks primarily formed?

Accepted Answer

Compaction and cementation

Answer

Cooling magma

Answer

High temperature metamorphism

Answer

Erosion and weathering