Pumice has a hardness of about 6 on the Mohs scale of mineral hardness.
Pumice has a hardness of about 5 to 6 on the Mohs scale.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
The mineral hardness scale is called the Mohs scale of mineral hardness, named after German geologist Friedrich Mohs who created it in 1812.
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.
Pumice has a hardness of about 6 on the Mohs scale of mineral hardness.
Pumice has a hardness of about 5 to 6 on the Mohs scale.
5-6
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
The mineral hardness scale is called the Mohs scale of mineral hardness, named after German geologist Friedrich Mohs who created it in 1812.
Limonite has a hardness of about 4 to 5.5 on the Mohs hardness scale.
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.
Flint has a hardness of 7 on the Mohs scale of hardness.
On the Mohs scale of relative mineral hardness, diamond is the hardest at 10.
The hardness is 3-4 on Mohs scale.
Nickel has a hardness of 4 on the Mohs scale.
Dolomite has a hardness of 3.5 to 4 on the Mohs hardness scale.