lesson assessment G9

What property of a mineral describes its resistance to scratching?

• Streak

• Cleavage

• Hardness

• Luster

Which mineral has a hardness of 10 on the Mohs scale?

• Talc

• Quartz

• Diamond

• Corundum

What property of a mineral describes the way it reflects light?

• Cleavage

• Streak

• Luster

• Specific gravity

What is the color of the powdered form of a mineral called?

• Cleavage

• Streak

• Specific gravity

• Luster

Which property of a mineral describes how it breaks when under stress?

• Luster

• Streak

• Specific gravity

• Cleavage

Minerals must be 

• Gas
• Solid
• Liquid
• Organically made

Why is coal not a mineral?

• It's not a solid
• It is man-made
• It is not inorganic
• It is made of carbon

If a mineral does not break smoothly, and leaves an uneven surface:

• cleavage
• fracture
• hardness
• inorganic

A substance that forms in nature, is a solid, has a definite chemical makeup, and has a crystal structure

• Rock

• Mineral

• Element

• Mohs

If you can scratch a mineral with your fingernail the hardness of the mineral is roughly?

• 6.0

• 4.0
• 3.5

• < 2.5