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Minerals

Minerals. Science Starter #3. Mohs Scale . If your fingernail can easily scratch the mineral, what is the hardness of this mineral? A student notices that their unknown mineral will scratch a penny but it will not scratch an iron nail. What mineral might this unknown be?

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Minerals

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  1. Minerals Science Starter #3

  2. Mohs Scale • If your fingernail can easily scratch the mineral, what is the hardness of this mineral? • A student notices that their unknown mineral will scratch a penny but it will not scratch an iron nail. What mineral might this unknown be? • What if the unknown mineral scratches all the common objects listed in the chart? http://regentsprep.org/Regents/earthsci/minerals.htm

  3. Mohs Scale • If your fingernail can easily scratch the mineral, what is the hardness of this mineral? (1 or 2) • A student notices that their unknown mineral will scratch a penny but it will not scratch an iron nail. What mineral might this unknown be? (4, Fluorite) • What if the unknown mineral scratches all the common objects listed in the chart? (7 or greater) http://regentsprep.org/Regents/earthsci/minerals.htm

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