limestone

Hi What are these? And how did they get in the limestone I was dissolving in acid to release some kind of fossil that is in it? The Limestone is from north central Indiana. Here are some pics of the limestone specimen that these came from: I appreciate anything at all that I can find out...

My grandson found this unique item near a Kentucky creek and we are trying to determine authenticity. The notches at the end seem fairly defined. After reading some other articles I'd say we've ruled out a stone moccasins last. Do you think this could have been a tool? Any ideas guys? Thanks...

Just a few Images of some of the stones I find while walking to and from the Library.. Image: Common limestone (Host Stone) with well formed crystal noduals.. Image: Very Uncommon Find.. This petrified Wood has turned opalized in some areas..

Someone say Lightening Strikes? Post Removed