Moh's scale is a HARDNESS scale, not a HARNESS scale.
Nickel has a hardness of 4 on the Mohs scale.
The Mohs hardness scale rating for brass is around 3 to 4.
Sulfur is a relatively soft mineral, with a hardness of 2 on the Mohs scale. It can be scratched by minerals with a higher hardness, such as calcite (3 on the Mohs scale) and fluorite (4 on the Mohs scale).
Stainless steel has a hardness level of around 5.5 on the Mohs scale.
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
the Mohs hardness scale
Talc is the softest mineral on the Mohs hardness scale, with a rating of 1. It is commonly used in cosmetics and as a lubricant.
This scale was proposed by the Austrian geologist Friderich Mohs.
It's called the Ore
Google "Mohs hardness scale". This is a relative hardness scale which compares one mineral's hardness to another. (It is between 3.5 and 5.5 on the Mohs hardness scale)
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
Nickel has a hardness of 4 on the Mohs scale.
The hardness is 3-4 on Mohs scale.
Topaz is number 8 on the Mohs scale.
The Mohs scale compares the hardness of an object or substance.
The softest material in the mohs scale is talc
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.