Iron-oxide concretions and nodules

Concretions Picture Gallery

Iron-oxide concretions and nodules

Iron Nodules

About Dragon Scale Stones

KGS--Bulletin 156--Stratigraphy of the Carlile Shale (Upper

All three found at Brook Chine on the Isle of Wight. What are these? : r/fossilid

Found in a Kentish Vineyard : r/whatsthisrock

Can Indian paint pots be found on Staten Island?

Iron-Oxide Concretions and Nodules, 1, Some Meteorite Information, Washington University in St. Louis

Found this peculiar looking rock, it's kinda heavy, wondering if anyone thinks it's anything special or probably a piece of iron junk? : r/geology