15. According to the Mohs scale, which minerals properly correspond to the hardest a hardest: apatite; least hard: talc b. hardest: diamond; least hard: talc c hardest: diamond; least hard: fluorite d. hardest: orthoclase; least hard: calcite
Answer (1)
Answer:According to the Mohs scale of mineral hardness: * Hardest: Diamond is the hardest known natural mineral, rated as 10 on the Mohs scale. * Least Hard (Softest): Talc is the softest mineral on the Mohs scale, rated as 1.Therefore, the option that properly corresponds to the hardest and least hard minerals is:b. hardest: diamond; least hard: talc
