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What is the hardest natural substance on Earth?
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Diamond
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Quartz
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Gold
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Iron
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It's Wrong!
Diamond is renowned as the hardest natural substance found on Earth. Its unparalleled hardness and durability arise from the strong covalent bonding between the carbon atoms in a diamond's crystal structure. This characteristic makes diamonds highly valuable not only as gemstones but also industrially for cutting, grinding, and drilling other materials.
