Understanding Minerals

What is a defining characteristic of minerals?

• They are always found in liquid form.

• They have a definite chemical composition.

• They are man-made.

• They are organic compounds.

Which mineral is known as table salt?

• Quartz

• Feldspar

• Halite

• Mica

How do some minerals form naturally?

• By the evaporation of saltwater

• By the freezing of water

• Through photosynthesis

• Through the melting of ice

What is a unique property of magnetite?

• It is a liquid at room temperature.

• It is the most magnetic mineral found in nature.

• It is transparent.

• It is the softest mineral.

Why is diamond much harder than graphite?

• Diamond is made of different elements.

• Graphite is transparent.

• Graphite is a liquid.

• Diamond has an interlocking molecular structure.