Moissanite scratchers much easier.

0cf8612b2e1e 5 days ago | parent | next [-]

I need a geologist to explain this one. Moissanite has a Mohs hardness of 9.5. I guess it is easier to scratch than a diamond, but the scratability should be indistinguishable between the two for all practical purposes.

	▲	jjmarr 5 days ago \| parent [-]
		Not a geologist but Mohs hardness is an ordinal scale so the distance between 10 and 9 isn't well-defined. The numbers are defined as being specific minerals. Diamond (10) is 4x as hard as corundum (9) which is 2x as hard as topaz (8). https://en.wikipedia.org/wiki/Mohs_scale#Reference_minerals

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cubefox 5 days ago | parent | prev | next [-]

Everything scratches easier than diamond. Moissanite is still very hard to scratch.

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function_seven 5 days ago | parent | prev [-]

Oh duh. I was so focused on optical qualities I didn’t even think about material ones.