Which of the following is the softest material ?
Correct answer: A. Talc
- A. Talc
- B. Feldspar
- C. Corundum
- D. Calcite
Explanation
On the Mohs hardness scale, talc has hardness 1, making it the softest of these minerals. Calcite, feldspar, and corundum have approximate hardnesses of 3, 6, and 9 respectively.
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