Question:
The hardest mineral on the Moh's scale is
The hardest mineral on the Moh's scale is
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On Moh's scale, diamond has hardness \(10\), so it is the hardest mineral.
Updated On: May 7, 2026
- Corundum
- Topaz
- Quartz
- Diamond
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The Correct Option is D
Solution and Explanation
Moh's scale is used to compare the hardness of minerals.
The scale ranges from:
\[
1 \quad \text{to} \quad 10.
\]
A mineral with hardness \(1\) is very soft, while a mineral with hardness \(10\) is the hardest.
On Moh's hardness scale:
\[
\text{Talc}=1,
\]
and
\[
\text{Diamond}=10.
\]
Diamond has the maximum hardness value on Moh's scale.
Corundum has hardness \(9\).
Topaz has hardness \(8\).
Quartz has hardness \(7\).
Since diamond has hardness \(10\), it is the hardest mineral on Moh's scale.
Therefore, the correct answer is:
\[
\text{Diamond}.
\]
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