Hematite is a 6.5 on the Mohs scale of mineral hardness.
No. Hematite (crystallized iron oxide) is 6.5 on the MOHS scale. Quartz (silicon dioxide)is 7.0.
Yes, other minerals can scratch hematite. Hematite has a hardness of 5.5-6.5 on the Mohs scale, so minerals with a higher hardness (like quartz or corundum) can scratch hematite.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
Sugar, specifically sucrose, is not typically rated on the Mohs scale of hardness since it is a soluble organic compound. However, it can be considered relatively soft, with a hardness roughly comparable to that of talc, which is rated as 1 on the scale. In terms of a numerical value, sugar might be estimated around 2 on the Mohs scale.
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
On the Mohs scale of relative mineral hardness, diamond is the hardest at 10.
Dolomite has a hardness of 3.5-4 on the Mohs scale of hardness.
Nickel has a hardness of 4 on the Mohs scale.