sadly all someone has to is create a sandstone fossil and than take it to the museum and tell them they are a paleontologist and claim it they dug somewhere esp. somwhere where dinosaurs are famous where a lot of dinosaur fossils are discovered in. The museum director doesn't care. No testing is done as long as you claim you are a paleontologist. Yes their are various types of rock sediments. Like sandstone, limestone, gravel, coal, etc and they all can be mixed with cement and cement contains minerals like calcium.
They won't check to see if you have any credentials, or even if you have any supporting evidence?
They don't care?
They will conduct no tests if you claim (not prove) that you are a paleontologist?
Tell me, have you tried this? But for you to assert these things as true, surely you have done it yourself?
I have no clue as to where you live, but how about you make a "dinosaur bone fossil," then go to a major museum (such as the Field Museum of Natural History in Chicago, Illinois, USA), tell them that you are a paleontologist and that you found this bone in some rock formation famous for dinosaur fossils (for example, the Morrison formation, which is found in the Rocky Mountain states...be sure not to be too specific about exactly WHERE in that formation you found it, or when...or where you're employed as a paleontologist, or if you had a permit to dig for fossils there, and so on...).
Keep your cell phone camera running, and post it here on RF.
It should be good for some laughs!