Of course! Fossils usually stand out in color, texture, and shape. On the treasure coast, fossils will usually be black or dark brown. Look for strange textures, like the shiny enamel of a tooth, or the grainy look of bone. Your fossil (#1) is a perfect example of what to look for. Also look for shape; a shark tooth is easy to recognize, but also look for unorthodox shapes. Just remember, when in doubt, pick it up. You are on the right track, keep looking; experience is the best teacher.