ES Unit 5 Practice Test 2025

The color of a mineral in powder form is called the mineral's

• hardness

• specific gravity

• luster

• streak

How light reflects off of a mineral is called the mineral's 

• luster
• streak
• cleavage
• fracture

Tags

NGSS.MS-PS4-2

The following image shows what mineral property?

• Hardness
• Streak
• Cleavage
• Density

Diamond has a hardness of ___ on Mohs Hardness Scale.

• 1
• 5
• 8
• 10

By definition, a mineral has which of the following characteristic(s)?

• definite chemical composition

• definite crystal structure

• naturally occurring solid

• inorganic

• all of the above

A mineral that breaks unevenly into pieces that have curved or irregular surfaces is demonstrating __________

• cleavage

• fracture

• luster

• steak

Use the mineral identification sheet pictured to complete the following problem.

A reddish brown mineral was found. It has a gray streak and can be scratched by a fingernail. What mineral is it?

• copper

• talc

• Bauxite

• corundum

Tags

NGSS.MS-PS1-2

Use the mineral identification sheet to complete the following problem.

A mineral was found that can be scratched by quartz but not fluorite. It is green in color but has a colorless streak. What mineral is it?

• Bauxite

• Garnet

• Hornblende

• Feldspar

What mineral is used for common table salt?

• quartz

• sulfur

• halite

• calcite

What mineral is used for pencils?

• Graphite

• Titanium

• Magnetite

• Quartz