Diamond
Granite is not assigned a number on the Mohs scale of hardness. The Mohs scale is a measurement of the relative hardness of minerals. Because granite is a rock composed of a variety of minerals, only the individual minerals which compose it have a Mohs hardness.
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
where is rock salt on the moths hardness scale
Talc
diamond
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
It's called the Ore
this question is stupid
The hardness of Limonite is 4 t0 5.5 on the mohs hardness scale.
Breccia does not have a specific hardness on the Mohs scale because it is a type of rock composed of different minerals. The hardness of breccia would vary depending on the hardness of the minerals present in its composition.
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.
flint is a type of quartz, so it has a hardness of about 7 on the mohs scale of hardness