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Hardness StandardMoh’s Scale, Hardness of Materials was created by German Mineralogist  Friedrich Mohs in1822 measuring the hardness of scratch resistance of various materials.  He based it on ten readily availablematerials.  From 1 very soft and  10 very hard.  The hardness of a material is measured against the scale by finding the hardest material that that the given material can scratch, or.....
By: JC
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