If you’ve ever taken a hike or a simple walk through nature, you have probably noticed that there are some beautiful stones that can be found laying around the natural environment. It wouldn’t be unusual for a child, or even a curious adult, to pick up these stones for further investigation. However, that may not always be a good idea. That’s because some of these stones can be deadly or may pose serious health risks if you’re not careful.

#TheUnknownList