Can soft materials scratch hard materials?

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russ_watters

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So you're saying that if I would use a smooth cloth to rub a diamond or steel I wouldn't cause some wear or change in the surface , assuming the action would go on long enough.?
Correct (for steel at least, the cloth must be clean)

People pass diamonds down through generations. Have you ever seen or even heard of a diamond in an engagement ring becoming worn-down?
 

Borek

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People pass diamonds down through generations. Have you ever seen or even heard of a diamond in an engagement ring becoming worn-down?
That can just mean they wear down much slower, it doesn't mean they don't wear out at all.
 

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