Module 6: Ore Minerals

Question 1

It is used to extract ore minerals near the surface of the Earth.

Answer 1

Surface Mining

Question 2

The most common type of surface mining. It means a big hole in the ground. It is used to mine gravel and sand and even rock.

Answer 2

Open-pit mining

Question 3

This mining type involves the removal of a thin strip of overburden above a desired deposit, dumping the removed overburden behind the deposit, extracting the desired deposit, creating a second, parallel strip in the same manner and depositing the waste materials from that second (new) strip onto the first strip.

Answer 3

Strip mining

Question 4

This is the process of mining materials from the bottom of a body of water, including rivers, lakes, and oceans.

Answer 4

Dredging

Question 5

It is used to extract the rocks, minerals and other precious stories that can be found beneath the Earth’s surface.

Answer 5

Underground mining

Question 6

This kind of mining is more expensive and dangerous as compared to surface mining because miners need to use explosive devices to remove the minerals from the rocks that cover them.

Answer 6

Underground Mining

Question 7

STEPS IN PROCESSING MINERALS
The removal of a portion which represents a whole needed for the analysis of this material.

Answer 7

Sampling

Question 8

STEPS IN PROCESSING MINERALS
Important to evaluate the valuable component in an ore. This includes chemical, mineral, and particle size analysis.

Answer 8

Analysis

Question 9

STEPS IN PROCESSING MINERALS
Important to evaluate the valuable component in an ore. This includes chemical, mineral, and particle size analysis.

Answer 9

Analysis

Question 10

STEPS IN PROCESSING MINERALS
The process where the valuable components of the ore are separated through crushing and grinding. This process begins by crushing the ores to a particular size and finishes it by grinding the ores into a powder form.

Answer 10

Comminution

Question 11

STEPS IN PROCESSING MINERALS
Involves the separation of the valuable minerals from the raw materials

Answer 11

Concentration

Question 12

STEPS IN PROCESSING MINERALS
Uses the concentration to convert it to usable minerals. This involves filtration and sedimentation of the suspension and drying of the suspension and drying of the solid materials harvested from this suspension

Answer 12

Dewatering