Penny_black Posted October 3, 2022 Share Posted October 3, 2022 This rock is shaped like an oyster and the ring around it's mid section glitters with light. Link to comment Share on other sites More sharing options...
digit Posted October 3, 2022 Share Posted October 3, 2022 Looks like some sort of a concretion with a mineral band running through it. I can see why you would think bivalve given the shape and size (and ring running around the middle) but this is coincidence only. Cool looking rock though. Cheers. -Ken Link to comment Share on other sites More sharing options...
rocket Posted October 3, 2022 Share Posted October 3, 2022 my opinion: rock with quarz-layer, eroded, perhaps by running water in a river 2 Link to comment Share on other sites More sharing options...
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