An ore mineral has the following physical properties: (1) metallic lustre, (2) steel-grey color, (3) two sets of octahedral cleavage, (4) high specific gravity, and (5) makes mark on paper. Identify the ore mineral.
Show Hint
- Sphalerite
- Magnetite
- Galena
- Bornite
The Correct Option is C
Solution and Explanation
The given properties match those of galena, a lead sulfide mineral. It is metallic, has a steel-grey color, and shows two sets of octahedral cleavage. Its high specific gravity and ability to mark paper are also characteristic.
Step 2: Conclusion.
The correct answer is (C) Galena, as it matches all the described properties.
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