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Not the most obvious ending to a sentence.

Posted: Sat Dec 04, 2021 10:46 am
by Gfamily
the wiki wrote:Diamonds are not infinitely hard, and are subject to wear and scratching: although they are the hardest known material on Mohs Scale, they can be scratched by other diamonds and worn down even by much softer materials, such as vinyl records.
https://en.m.wikipedia.org/wiki/List_of ... ls_science

Spoiler: