Minerals Quiz

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

Why is coal not a mineral?

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

The following image shows what mineral property?

• Hardness
• Streak
• Cleavage
• Density

Dull, silky, waxy, pearly, and earthy are terms that best describe which property of minerals?

• luster
• color
• streak
• cleavage

How do you test the hardness of a mineral? 

• Throw it against a wall
• Step on it
• Scratch Test
• Kick it until it breaks

A naturally occurring, inorganic solid with a crystal structure and a definite chemical composition is referring to

• density
• streak
• mineral
• non silicate mineral

What does the Mohs Scale measure?

• Streak
• Luster
• Hardness
• Cleavage

_____________________ means that the mineral was formed by nature, not by a human or machine

• Naturally Occurring
• Inorganic Processes
• Solid
• Crystal Shape

What does Definite Chemical Composition means?

• Random elements in indefinite proportions
• Elements spread throughout the entire mineral evenly
• Elements spread out the entire mineral unevenly