2-2.5
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
Yes, coal is not officially assigned a Mohs hardness value as it is not a mineral. However, coal is generally regarded as a relatively soft material compared to most minerals, and can be easily scratched with a fingernail or copper coin, which are examples of materials with hardness ratings lower than 2.5 on the Mohs scale.
Bituminous coal has a hardness ranging from 1.1 to 2.2 on the Mohs scale, which measures the hardness of minerals. It is considered to be relatively soft compared to other types of coal, such as anthracite coal.
what would you use the mohns scale of hardness for
Because it is a rock, not a mineral, the Mohs value will vary significantly from sample to sample. An average range would be between 3.0 and 3.8.
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
Yes, coal is not officially assigned a Mohs hardness value as it is not a mineral. However, coal is generally regarded as a relatively soft material compared to most minerals, and can be easily scratched with a fingernail or copper coin, which are examples of materials with hardness ratings lower than 2.5 on the Mohs scale.
Bituminous coal has a hardness ranging from 1.1 to 2.2 on the Mohs scale, which measures the hardness of minerals. It is considered to be relatively soft compared to other types of coal, such as anthracite coal.
what would you use the mohns scale of hardness for
Because it is a rock, not a mineral, the Mohs value will vary significantly from sample to sample. An average range would be between 3.0 and 3.8.
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
The hardness of Limonite is 4 t0 5.5 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
it is 6 1/2 in the mohs hardness scale
It's called the Ore
The Mohs hardness of sodium chloride is 2,5. The Mohs hardness is established by comparison with other minerals, having a known hardness.