Geodes?

[Joe G from Md]

Found these in creek beside house, these are Geodes, right? Thanks for the info. My house in Ky.

 

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[flinthunter]

They both look like geodes to me. In the top picture, the left hand piece appears to be botryoidal chalcedony geode, and the right hand piece looks like a quartz crystal geode.

 

[flinthunter]

It looks like a bit of iron staining in the quartz geode. A few hour soak in iron out might bring the sparkle back. You can find iron out in the laundry section of your local Dollar General, Walmart, or grocery store, etc. I use oxalic acid but iron out does the same thing.