Using the table below, which of the materials would be able to scratch Quartz? Mohs Scale Index Mineral Hardness Common Objects diamond 10 corundum 9 topaz 8 quartz 7 orthoclase 6 steel file apatite 5 glass fluorite 4 calcite 3 copper penny gypsum 2 fingernail talc 1 fluorite talc diamond gypsum
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