Rocks and Minerals

Which of the following is NOT a definition of mineral?

• exist naturally

• substances formed through inorganic and organic processes

• solids

• definite chemical composition

This property measures the resistance of a mineral to abrasion.

• Hardness

• Luster

• Color

• Streak

This property determines the quality and intensity of reflected light exhibited by the mineral.

• Hardness

• Luster

• Color

• Streak

Which statement best expresses the relationship between rocks and minerals?

• Rocks and minerals are both made of gems.

• Minerals are usually made of rocks.

• Rocks are usually made of minerals.

• Rocks and minerals are the same thing.

Broken pieces of rocks are deposited into piles and are cemented together by other minerals. What type of rock had been formed?

• Igneous

• Sedimentary

• Metamorphic

This rock is formed by extreme heat and/or pressure that alters the chemical composition into a new form of rock.

• Igneous

• Sedimentary

• Metamorphic

This rock is produced when melted rock cools and hardens.

• Igneous

• Sedimentary

• Metamorphic

Which processes must occur for an igneous rock to change into metamorphic rock?

• compaction and cementation

• melting and cooling

• uplift and erosion

• heating and pressure

Which processes must occur for an igneous rock to change into metamorphic rock?

• compaction and cementation

• melting and cooling

• uplift and erosion

• heating and pressure

Sedimentary rock forms when rock is first __________.

• melted into liquid magma

• broken down by weathering

• exposed to great temperature

• exposed to great pressure