Top 10 Mohs Scale Degrees of HardnessThe Mohs scale of mineral hardness was once upon a time little more than a wooden box. This wooden box had ten compartments and inside each one contained a numbered mineral specimen. Then each mineral was tested by seeing which minerals can visibly scratch the others. Despite its lack…
via Top 10 Mohs Scale Degrees of Hardness — The top 10 of Anything and Everything!!!
Purrseidon 
Diamonds are a woman’s best furiend 😛
Happy Friday ❤
Sid
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Maybe some women, but my mom doesn’t like them… or jewelry in general. Dad, on the other paw, has diamonds on a couple of his saw blades… =^.^=
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Although i didn’t know the order of the others on the list, i do remember from school that diamonds are the hardest things on earth. Our teacher told us, to tell if he gave you a real diamond, see if it will scratch a glass or mirror. If not, he’s a cheapskate!
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My staff has mentioned that, too. =^.^=
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Bill knows about this kind of thing. It is pretty fascinating.
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I am more familiar with the hardness scale of various types of kibble, but thought that was very interesting information. =^.^=
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I remember that little box from school.
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You have an excellent memory, Ms. Ellen! =^.^=
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