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re: Now Closed: I'll answer any question you have about ROCKS!
Posted on 7/10/14 at 3:32 pm to MapGuy
Posted on 7/10/14 at 3:32 pm to MapGuy
quote:quote:
quote:
A shell is biomineralized by a living organism.
so a shell isn't a rock but a rock can be shell?
A shell is not a rock. A rock can be composed of shells.
See coquina:
1
Posted on 7/10/14 at 3:35 pm to Pectus
so a shale formation, is it actual rock?
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