curious kat Posted October 29, 2022 Share Posted October 29, 2022 I've been trying for a few years to find out what this is. Found it in Flagstaff AZ. It's feels heavy like a rock, has a core that looks like bone marrow. Outside is fuzzy, bumpy looking/feeling but like rock & one outside corner looks burnt. Thanks! Link to comment Share on other sites More sharing options...
DPS Ammonite Posted October 29, 2022 Share Posted October 29, 2022 It looks like basaltic lava with elongated vesicles that formed by the movement of the lava in a flow. 1 2 My goal is to leave no stone or fossil unturned. See my Arizona Paleontology Guide link The best single resource for Arizona paleontology anywhere. Link to comment Share on other sites More sharing options...
curious kat Posted October 30, 2022 Author Share Posted October 30, 2022 OK, Thanks for that! Link to comment Share on other sites More sharing options...
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