Need help identifying this rock

[Chelle67]

This was found in N Central Kansas. It looks more solid than a crystal. It has dark spots throughout the rock. You can see them below surface. It also has a brownish color on it.

 

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[BurntBear]

Appears to be Flint (Chalcedony).

 

[DDancer]

Please crop your pictures down some in the future
Its milky quartz with pockets of druzy quartz and either magnetite or another iron mineral in it *the black crystals and flecks*. The iron stain on the one pocket is what suggests iron. Vuggy material like this can lead to some crystals.