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A mineral can be scratched by an iron nail. what can you conclude?
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A mineral can be scratched by an iron nail. what can you conclude?

User Rambou
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2 Answers

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You can determine the strength of a mineral by scratching it, and seeing how deep it scratched
User Abhijit K Rao
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Answer:

The overall hardness of the mineral is more than two-and-a-half, because if it did not fall into this range, the nail would likely go through this mineral instead of simply scratching it.

User Azriz
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