Which of the following is the primary ore used for the extraction of nickel?
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A.
Pentlandite
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B.
Bauxite
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C.
Galena
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D.
Hematite
Correct Answer:
A. Pentlandite
Explanation:
Pentlandite is the primary ore used for nickel extraction, particularly from magmatic sulfide deposits. While nickel can be found in various minerals, pentlandite is the most economically significant sulfide mineral due to its high nickel content, typically ranging from 22% to 42%. It often occurs in massive granular aggregates alongside other sulfides like pyrrhotite and chalcopyrite. Other minerals mentioned, such as bauxite (aluminum), galena (lead), and hematite (iron), are primary ores for different metals.
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