Dear Chandrashekhar Phadke.
Carbonate shells usually remain carbonatic, only that aragonite often
recrystallizes to calcite. Sometimes there is no way to distinguish them
except by their geographic and/or stratigraphic context or direct
dating. That still leaves the question when is a fossil a fossil?
Sven Nielsen
Am 2014-01-04 05:33, schrieb chandrashekhar phadke:
> Dear friends ,
>
> How to distinguish between the fossil seashells and the normal
> seashells ? Whether fossil seashells give effervescence reaction to
> the acid ? If during fossilization, calcium is replaced by some other
> elements it may not give acid reaction. Would like to have comments
> from the experts.
>
> Chandrashekhar Phadke
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