Topaz is number 8 on the Mohs scale.
A steel file can scratch minerals with a hardness of 6.5 or lower on the Mohs scale. This includes minerals such as gypsum, calcite, and fluorite.
The softest material in the mohs scale is talc
The hardness of the mineral pyrite, or Fool's Gold, is about 6 on the Mohs hardness scale. That's a little harder than a steel knife blade, but not as hard as the mineral quartz
The hardness of Limonite is 4 t0 5.5 on the mohs hardness scale.
Stainless steel has a hardness level of around 5.5 on the Mohs scale.
A typical steel knife would be in the 5-5.5 range on the Mohs scale.
A paper clip is typically made of steel, which has a Mohs hardness of around 5.5 to 6.5. Therefore, a paper clip would have a hardness of around 5.5 to 6.5 on the Mohs hardness scale.
This scale was proposed by the Austrian geologist Friderich Mohs.
The hardness of a steel nail is about 4.5 (About the same hardness of the mineral Fluorite.)
It's called the Ore
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
The Mohs scale compares the hardness of an object or substance.
Topaz is number 8 on the Mohs scale.
Nickel has a hardness of 4 on the Mohs scale.
The hardness is 3-4 on Mohs scale.
A steel file can scratch minerals with a hardness of 6.5 or lower on the Mohs scale. This includes minerals such as gypsum, calcite, and fluorite.