| 1. | The most common scale of measurement is the ordinal Mohs hardness scale.
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| 2. | "' Christite "'is a mineral with the chemical formula Mohs Hardness Scale.
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| 3. | It has a relative hardness of 8-9 on Mohs relative hardness scale.
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| 4. | However, there is not always a simple relationship between the various hardness scales.
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| 5. | He refers to using one hard mineral to scratch another, presaging the Mohs hardness scale.
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| 6. | Measured on a hardness scale called Rockwell C, both achieve a rating of around 60.
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| 7. | Its Mohs hardness scale is 4.5-5.
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| 8. | Changbaiite has a hardness of 472.4 kg / mm 2 on the Vickers hardness scale and 5.3 on mohs scale.
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| 9. | The harder the material to our informal perception, the greater the number it will achieve on our respective hardness scales.
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| 10. | On a hardness scale of 65A to 100A, all Penny wheels are rated at 83A, making them ideal for cruising.
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