Mining and Minerals 2

What is one of the major characteristics that define a mineral?

• Must occur naturally in the Earth

• Must be organic

• Are always liquids

• Have no definite chemical composition

Fill in the blank: Minerals must be _______ (not formed from living things or the remains of living things).

• inorganic

• organic

• synthetic

• man-made

Which of the following is true about minerals?

• They are always gases

• They have a definite chemical composition

• They are formed from living things

• They have no crystalline structures

What is a characteristic of minerals?

• Must occur artificially

• Must be inorganic

• Are always liquids

• Have no chemical composition

Which of the following is a way minerals can form?

• Crystallization from magma or lava

• Photosynthesis

• Fishing

• Combustion

What are ores?

• Naturally occurring solid materials from which metals or other valuable minerals can be extracted.

• Man-made chemicals created for industrial purposes.

• A type of rock used exclusively for construction.

• Precious gemstones mined solely for jewelry.

Which of the following is a fuel?

• Silver

• Coal

• Dolomite

• Ruby

Fill in the blank: Native gold, silver, copper, platinum, antimony, and sulfur are examples of _______.

• Ores

• Minerals

• Elements

• Compounds

What is strip mining?

• A method of mining that involves the removal of soil and rock layers to access mineral deposits.

• A type of mining that uses deep underground tunnels.

• A process of mining where minerals are separated by chemical reactions.

• A mining technique that solely relies on hydraulic fracturing.

Which mining method involves the digging of tunnels underground?

(a)