I have a shell collection and I want to know if is is considerd a rock.
Are shells some kind of rock?
no, shells are not rocks. they were at one point, protection for an animal. they are mainly made up of calcium. rocks were made in the ground, while shells were not.
Reply:that is a good answer! i did not know that Report It
Reply:They are not a rock. They are the protective covering of the animal that uses it.
barber
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