Which Crusher Is Suitable for Your Hard Rock? | Fote …

Diamond mohs scale is 10 and it is the hardest stone. Mohs hardness scale is a purely ordinal scale. For example,corundum (9) is twice as hard as Topaz (8), but diamond (10) is four times as hard as corundum. Common hard rocks hardness: garnet hardness: 6.5-7.5. sapphire hardness: 9. topaz hardness: 8. emerald hardness: 7.5-8.

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Which Crusher Is Suitable for Your Hard Rock? | Fote …

Rock hardness refers to the resistance of a rock to scratching. Its value equals the uniaxial compressive strength (MPa) of the rock divided by 10. Rock hardness and compressive strength have a certain connection, but also have big differences. Rock hardness is the resistance of a part of the rock surface when it is pressed in…

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How to Choose The Right Crusher for Hard Rock?

When we choose the right hard rock crusher, one of the important factors is the Mohs hardness of the rock. Different rocks have different Mohs hardness, and the corresponding rock crushers used are also different. Hard rocks vary in Mohs hardness even if they are the same rock but have different mineral compositions and sizes.

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Types of Crushers: Choosing the Right One for Each Stage

Hardness: Hard materials like granite and basalt are suitable for jaw crushers or gyratory crushers, while softer materials like limestone and coal can opt for impact crushers or hammer crushers. Abrasiveness: Materials with high abrasiveness like iron ore require crushers with good wear resistance, such as cone crushers.

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