Mineral Identification Quiz

Which of the following is NOT a characteristic of a mineral?

• Must be solid

• Must be organic

• Must have a crystalline structure

• Must be naturally occurring

What are the main elements that define the composition of minerals in the Earth's crust?

• Carbon, Hydrogen, Nitrogen, Oxygen

• Gold, Silver, Platinum, Palladium

• Helium, Neon, Argon, Krypton

• Oxygen, Silicon, Aluminum, Iron

How can the luster of a mineral be described?

• By how light reflects off its surface

• By its color

• By its magnetic properties

• By its weight

Which type of luster is characterized by a shiny appearance?

• Silky

• Earthy

• Dull

• Metallic

What does cleavage in minerals refer to?

• The mineral's weight

• The mineral's magnetic properties

• The way a mineral breaks along weak points

• The color of the mineral

Which mineral is known for breaking with a fracture rather than cleavage?

• Muscovite

• Biotite

• Talc

• Quartz

What tool is used to determine the streak of a mineral?

• A magnet

• A streak plate

• A steel nail

• A glass plate

On the Mohs hardness scale, what is the hardness of a diamond?

• 1

• 5

• 10

• 7

If a mineral cannot be scratched by a penny but can be scratched by a steel nail, what is its approximate hardness?

• 2

• 7

• 3

• 5

Which property is NOT typically used to identify minerals?

• Taste

• Luster

• Color

• Hardness