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What kind of rock is this has crystal inside


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I agree with rockhunter1620 that it is a water worn cobble, but I'm going with a metamorphic rock cobble with garnet fragments. In the last picture there is a piece of the brownish material that has the distinct shape of a garnet; also, there are apparently no cleavage plans visible, just fractures, like garnets produce. Best tests, place warm vineger on the white stuff & see if it fizzes, then do the same for the brownish stuff. If neither fizzes then it is not limestone or a carbonate, if it fizzes it is limestone or a carbonate. Check the hardness of the brownish stuff if less than 7/7.5 on the moh's harness scale it is not garnet.

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