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What could the hardness of a mineral be if it can be scratched by your fingernail?
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Sep 2, 2021
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What could the hardness of a mineral be if it can be scratched by your fingernail?
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Januszstabik
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The hardness of a miners can be 2 or lower
Rachit Patel
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Sep 8, 2021
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Rachit Patel
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