On Mohs Hardness Scale Which Is the Softest Mineral?

Talc is the softest and diamond is the hardest. Each mineral can scratch only those below it on the scale.

What mineral is a 10 on Mohs hardness scale?

Hard - cannot be scratched by a knife but can scratch glass, Mohs' 6-9; Diamond is the hardest known mineral, Mohs' 10.

Which of the following minerals are listed from hardest to softest?

Talc – Gypsum – Calcite – Fluorite – Apatite – Feldspar – Quartz – Topaz – Corundum – Diamond - “Mohs Scale of Mineral Hardness ” should be familiar to rock-hounds and earth-science students alike, as it lists common minerals in the order of relative hardness (talc as the softest and diamond as the hardest [...]