Hello all,   I think this question has been asked a lot here but It is still not 100% clear for me how to stabilise,  glue and prep fossils. I've found some beautifel ammonites, a reptile tooth, trilobites... But every time I try to prep one it turns into a disaster after a couple of minutes. I have an air scribe and a lot of hand tools , but I am afraid of using them again since all of my tries turned out in the destruction of the fossil.   Could someone give me hints on thi