help indentifying some rocks?

[Nicko Mendo]

They look like potatos cut in half with some kind of crystalized shine on the inside. And these huge rocks that have crystals. Im no expert some please have patience on me. Thank you

 

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[StoneWhisper]

The rounded nodules seem to indicate that this is a very similar structure to a chalcedony.. basically a geode which has fallen in on itself or just broken open and fell apart.. while the other image.. a few simply river rocks.. yet the two halves in the middle could have a thunder eggs agate/jasper appearance.. The milky/cream colors mix stone.

 

[Nicko Mendo]

Thank you for your time. Are these rocks worth anyting?

 

[StoneWhisper]

They are worth,, knowing that you found them.. thou the two stones in the middle could be cut and shaped into cabochons.