SCHOHARIE GRIT. 
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18 . SCHOHARIE GRIT. 
Shell Grit. 
This mass, which exists in the first district, must disappear near Cherry-Valley, a few 
loose pieces only having been found to the northeast of the village. It is not confined to this 
State, but is also found in Pendleton, Madison county, Indiana, where it is readily recognized 
by its peculiar mineral character, the rock being a calcareous fine-grained sandstone, from 
which, when long exposed, the carbonate of lime disappears without altering the form of the 
rock; and by its fossils, the genus Pleurorhynchus, for example, being as abundant in it as 
in the New-York grit. 
As this rock is highly fossiliferous, and most of the fossils are peculiar and confined to it, 
though their existence was at first but merely suspected, it could not be passed unnoticed. 
