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QUESTION
Scale Mineral 10 diamond 9 corundum 8 topaz 7 quartz 6 feldspar 5 apatite 4 fluorite 3 calcite 2 gypsum 1 talc Talc scratches calcite. Quartz scratches corundum. Fluorite scratches feldspar. Topaz scr
Scale Mineral 10 diamond 9 corundum 8 topaz 7 quartz 6 feldspar 5 apatite 4 fluorite 3 calcite 2 gypsum 1 talc Talc scratches calcite. Quartz scratches corundum. Fluorite scratches feldspar. Topaz scratches quartz.
