Activity Todd83 posted an image in the group What is it? from the myFOSSIL app 4 months, 1 week ago 4 months, 1 week ago 4 months, 1 week ago Hard like a rock, heavy like a rock, probably a rock. I can’t find anything similar online, resembles a large bone or vertebrate IMO… any help would be appreciated. Corinne replied 4 months, 1 week ago looks like a septarian nodule. Mostly you will find pictures of them cut and polished, but the outside often looks like this. Todd83 replied 4 months, 1 week ago Awesome thank you!