Q. I know that diamonds and graphite are both composed of carbon, where is graphite on the Mohs hardness scale. :: Petersen Jewelers | Jewelry, Diamonds, Engagement & Weddings, Gold and more

12 / 29 / 10

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Q. I know that diamonds and graphite are both composed of carbon, where is graphite on the Mohs hardness scale.

A. Graphite is at approximately a .5 (point 5) on the Mohs scale; talc is harder, at a ranking of 1.

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