Question

this is mohs hardness scale. which example lists minerals from hardest to softest? mineral hardness talc 1 gypsum 2 calcite 3 fluorite 4 apatite 5 orthoclase 6 quartz 7 topaz 8 corundum 9 diamond 10 apatite, quartz, fluorite, talc diamond, talc, fluorite, topaz talc, calcite, orthoclase, diamond corundum, quartz, calcite, gypsum

Explanation:

Based on Mohs hardness scale, we check the hardness values of each mineral in the options and arrange them from highest to lowest. Corundum (9), quartz (7), calcite (3), gypsum (2) is the correct order from hardest to softest among the given choices.

Answer:

corundum, quartz, calcite, gypsum