Multiple Choice
In the context of mineral properties, which mineral is considered the hardest naturally occurring mineral on Earth on the Mohs hardness scale?
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8. Water and Minerals
Introduction to Minerals
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In an introduction to minerals, which mineral is the major component of rock salt?
A
Silicon dioxide (quartz)
B
Calcium sulfate dihydrate (gypsum)
C
Calcium carbonate (calcite)
D
Sodium chloride (halite)
Verified step by step guidance1
Understand that the question asks for the major mineral component of rock salt, which is a naturally occurring mineral form.
Recall that rock salt is commonly known as halite, which is primarily composed of sodium chloride.
Recognize that the other options listed (silicon dioxide, calcium sulfate dihydrate, calcium carbonate) are minerals found in different types of rocks or sediments, but not in rock salt.
Identify that sodium chloride (halite) is the mineral responsible for the characteristic salty taste and is the main component of rock salt deposits.
Conclude that the correct answer is sodium chloride (halite) because it is the major mineral found in rock salt.
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