Jackmandu Posted January 30, 2022 Share Posted January 30, 2022 Out rock hounding in SE South Dakota in the end of January (mark that on your calendar! LOL) Anyways...found this interesting piece and it really caught my eye...not sure how it was formed? Any ideas?? Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 30, 2022 Share Posted January 30, 2022 Banded chert, I think. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
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