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Posted in response to What does limestone look like? from Naomi Bounds on October 05, 2011 at 01:19:30:

Re: What does limestone look like?

Limestone can be just about any color but is usually white to yellowish, one way of identifying limestone is by hardness, its quite soft, can be easily scratched with a file. Limestone also reacts with acid releasing bubbles of Carbon Dioxide, just put a few drops of acid on your rock and it will foam up. Limestone is composed of ancient marine sediments so you may see fossil shells and corals on close inspection.

From Paul - October 06, 2011 at 02:13:27
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