Test - Unit 3 Minerals

What are the characteristics of minerals?

• They are naturally occurring, solid, and have a specific chemical composition

• They are synthetic and liquid

• They are gaseous and organic

• They are always transparent and malleable

What is a characteristic of the specific arrangement of atoms in the substances defined in the image?

• They are organic.

• They are randomly arranged.

• They have a specific arrangement.

• They come from living things.

Which mineral is easily identified by its color and smell?

• Diamond

• Sulfur

• Ruby

• Emerald

What causes the variety of colors in some minerals?

• Only impurities

• Only exposure to heat

• Only exposure to air

• Impurities, exposure to heat or air

What does the term "Luster" describe in mineralogy?

• The color of a mineral

• The hardness of a mineral

• How a mineral reflects light

• The weight of a mineral

Which mineral is mentioned as having perfect cleavage in one direction?

• Quartz

• Mica

• Feldspar

• Calcite

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

• Luster

• Cleavage

• Streak

• Hardness

How can you observe the streak of a mineral?

• By holding it up to the light

• By cutting it with a knife

• By rubbing it across an unglazed tile called a streak plate

• By heating it in a flame

What is the hardness of talc on Moh's scale?

• 10

• 7

• 1

• 5

What does Moh's scale measure?

• The weight of a mineral

• The brightness of a mineral

• The hardness of a mineral

• The elasticity of a mineral