The Mohs Scale of Hardness is based on the hardness of a certain mineral:
1. Talc
2. Gypsum
3.Calcite
4. Fluorite
5. Apatite
6. Orthoclase Feldspar
7. Quartz
8. Topaz
9. Corundum
10. Diamond
The Mohs scale identifies hardness. Example: on a scale of 1-10, diamond is 10 and pencil graphite is 1.5.
determine relative hardness of minerals, specifically, although it can be extended to most solids. For example, my fingernail is harder than lead, but not steel, so the calcium compound in my fingernail is somewhere between the two on the Mohs scale. By comparing a very long list of things, we can make a very accurate table of what will wear down what easier, very useful information for engineering things like bearings. Very good article in the following link.
if is scratched by fingernail is a1 if scratched by acoin is a 3 if scratches a glass a 5 if easily by a knife a 7 if knife Barely scratches a 9 if scratches a knife a 10
Tantalum is 6.5 on the Mohs scale,
It's called the Ore
how hard is diatomite on mohs scale
Peridot is around 6.5 to 7 on the mohs scale.
Quartz has the value of 7 on the Mohs 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.
Peridot is around 6.5 to 7 on the mohs scale.
Topaz is number 8 on the Mohs scale.
Quartz has the value of 7 on the Mohs scale.
This scale was proposed by the Austrian geologist Friderich Mohs.
Amber is 2-3 on the mohs scale of hardness.
The softest material in the mohs scale is talc