If chalk is such a dense rock why is it so soft/weak?

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For example iron is really dense and it’s density seems to be the reason it’s such a strong material, why is the same not true for chalk?

I looked at a chart and chalk is much more dense than so many other types of rock, all of which are much stronger than chalk and could be used practically as building materials etc. But chalk is so soft? Is it because of the porosity? Or structure? Idk

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Anonymous 0 Comments

The question is not how dense a material is. Density is about lots of molecules of any material being packed very close to each other in a small amount of space.

Strength is about how hard those molecules are holding on to each other.

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