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Social Studies, 02.10.2020 15:01 taylord4230
Jim observes that the mineral is mostly colorless, so he guesses that it is quartz. To be sure, he measures its hardness on the Mohs scale. If the mineral is quartz, its hardness should be .
A.
7
B.
2
C.
1
D.
6
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Jim observes that the mineral is mostly colorless, so he guesses that it is quartz. To be sure, he m...
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