The individual minerals in the Amphibole group are between 5-6 on the Mohs scale.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
It's called the Ore
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
Dolomite has a hardness of 3.5-4 on the Mohs scale of hardness.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
It's called the Ore
The hardness of Limonite is 4 t0 5.5 on the mohs hardness scale.
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
Nickel has a hardness of 4 on the Mohs scale.
The hardness is 3-4 on Mohs scale.
Dolomite has a hardness of 3.5-4 on the Mohs scale of hardness.
The Mohs scale is used to determine the relative hardness of minerals.
The harness of amphibole, a group of silicate minerals, typically ranges from 5 to 6 on the Mohs scale. This hardness indicates that amphibole is relatively hard and can scratch glass but can be scratched by harder materials. The specific hardness can vary slightly depending on the exact type of amphibole, as there are several different species within this mineral group.
Aluminum Oxide is roughly 8.5 - 9.0 on the hardness scale.
This scale was proposed by the Austrian geologist Friderich Mohs.