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Assessment ORE MINERALS
Part A. Instructions: Read each question carefully and choose the best
answer.
1.
Which of the following best defines an ore?
o A. A rock with organic matter
o B. A valuable mineral deposit that can be extracted
profitably
o C. A type of sedimentary rock
o D. A rock formed by weathering
2. Why is bauxite considered an important ore mineral?
o A. It is used in fertilizers
o B. It contains iron
o C. It is the main source of aluminum
o D. It is a gemstone
3. Which process concentrates valuable minerals into ore bodies?
o A. Erosion
o B. Metamorphism
o C. Ore formation
o D. Ore beneficiation
4. Galena is an important ore of which metal?
o A. Copper
o B. Silver
o C. Lead
o D. Aluminum
5. The Philippines is rich in ore minerals like copper, gold, and
nickel. What geological feature is responsible for this?
o A. Earth’s magnetic field
o B. Tropical climate
o C. Subduction and volcanic activity
o D. Erosion from rainfall
6. Which mineral is commonly associated with gold ore?
o A. Quartz
o B. Talc
o C. Calcite
o D. Gypsum
7. The extraction of metal from ore is called:
o A. Sedimentation
o B. Ore dressing
o C. Smelting
o D. Erosion
8. Which of the following is NOT considered a metallic ore?
o A. Hematite
o B. Bauxite
o C. Pyrite
o D. Calcite
9. What makes a mineral economically valuable?
o A. Its color
o B. Its hardness
o C. Its abundance and demand
o D. Its formation process
10. Which ore mineral is the primary source of iron?
o A. Magnetite
o B. Quartz
o C. Kaolinite
🆔 Part B – Identification (10 items)
Instructions: Identify the mineral or concept being described.
1. The main ore of aluminum
D. Mica
11. A student wants to know if a rock sample contains ore. Which
property is least useful?
o A. Streak color
o B. Hardness
o C. Smell
o D. Density
12. What is the main environmental concern of mining ore
minerals?
o A. Volcanic eruptions
o B. Earthquakes
o C. Habitat destruction and pollution
o D. Deforestation for tourism
13. Which of the following is true about ore formation?
o A. All ores are formed on the surface
o B. Ore formation requires wind
o C. Ore forms when minerals are naturally
concentrated
o D. Ore formation happens only in cold areas
14. A mineral with high electrical conductivity is likely used in:
o A. Fertilizer
o B. Electronics
o C. Ceramics
o D. Cement
15. Which is not an example of ore mineral used for energy
production?
o A. Uraninite
o B. Chalcopyrite
o C. Bituminous coal
o D. Pitchblende
16. What is a common use of the ore mineral chromite?
o A. Paper production
o B. Alloying in stainless steel
o C. Plastic manufacturing
o D. Fertilizer
17. Ore minerals are commonly found:
o A. Floating in oceans
o B. In igneous and hydrothermal deposits
o C. On tree leaves
o D. Formed in clouds
18. Copper is mainly extracted from which ore mineral?
o A. Galena
o B. Chalcopyrite
o C. Bauxite
o D. Magnetite
19. What happens during beneficiation of ore?
o A. Melting of ore
o B. Mining the ore
o C. Concentrating the valuable part of ore
o D. Erosion of ore rock
20. Which is a non-metallic mineral often mined as an ore?
o A. Halite
o B. Galena
o C. Magnetite
o D. Sphalerite
7.
The natural concentration of minerals in the Earth’s crust
8.
An iron ore known for its magnetic properties
9.
Valuable solid material naturally occurring in the earth
2.
A heavy, gray mineral – main source of lead
3.
The mineral used in producing stainless steel
4.
The process of extracting metal from ore
5.
The most common ore of copper
🔁 Part C – Matching Type (5 items)
Instructions: Match Column A with the correct item in Column B.
Column A
Column B
1. Hematite
A. Ore of aluminum
6.
The type of rock most ore minerals are found in
2. Chalcopyrite B. Ore of iron
10. The physical property often used to identify metallic ores
3. Bauxite
C. Ore of zinc
4. Sphalerite
D. Ore of copper
5. Chromite
E. Ore used in stainless steel