1. Minerals Science Starter #3

2. Mohs Scale 1. If your fingernail can easily scratch the mineral, what is the hardness of this mineral? 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? 3. What if the unknown mineral scratches all the common objects listed in the chart? http://regentsprep.org/Regents/earthsci/minerals.htm

3. Mohs Scale 1. If your fingernail can easily scratch the mineral, what is the hardness of this mineral? (1 or 2) 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) 3. What if the unknown mineral scratches all the common objects listed in the chart? (7 or greater) http://regentsprep.org/Regents/earthsci/minerals.htm