Rocks & Minerals Test Review 23

1) What do most igneous, sedimentary, and

metamorphic rocks have in common?

• A) They are formed from molten material.

• B) They are produced by heat and pressure.

• C) They are composed of minerals.

• D) They exhibit crystals, banding, and

  distinct layers.

Based on the student's observations, the mineral

can best be identified as

• A) magnetite

• B) hematite

• C) sulfur

• D) pyrite

The tendency of a mineral to split along flat

surfaces indicates the mineral property called

• cleavage

• fracture

• composition

• hardness

Which mineral has cleavage in two directions

and is commonly used to manufacture

ceramics?

• A) muscovite mica

• B) potassium feldspar

• C) fluorite

• D) olivine

Which mineral is commonly mined as a source

of the element lead (Pb)?

• magnetite

• Quartz
• Galena
• Hematite

Rocks can be classified as sedimentary, igneous, or metamorphic based primarily upon differences in their

• color

• density

• origin

• age

Which physical property can be observed in this photograph?

• cleavage

• hardness

• magnetism

• streak

The physical properties of minerals result from

their

• A) density and color

• B) texture and color of streak

• C) type of cleavage and hardness

• D) internal arrangement of atoms

This rock would be classified as metamorphic

because it shows

• A) distorted banding

• B) an organic composition

• C) a mixture of minerals

• D) crystals from precipitation

One difference between a breccia rock and a conglomerate rock is that the particles in a breccia rock are

• A) more aligned

• B) more angular

• C) harder

• D) land derived