Moh's scale is a HARDNESS scale, not a HARNESS scale.
This scale is a chart of relative hardness of the various minerals
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
No. The Mohs scale only lists minerals. Coal is a sedimentary or metamorphic rock, depending on the variety.
Extremely hard about 9.5 on Mohs' scale
Peridots hardness on mohs scale is 6.5-7
the Mohs hardness scale
Talc is the softest mineral on the scale
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)
the mohs hardness scale
Tantalum is 6.5 on the Mohs scale,
It's called the Ore
how hard is diatomite on mohs scale
The hardness is 3-4 on Mohs scale.
The Mohs scale compares the hardness of an object or substance.
Topaz is number 8 on the Mohs scale.
Peridot is around 6.5 to 7 on the mohs scale.
Quartz has the value of 7 on the Mohs scale.