Hubby & I went to Hawaii I think it was 2014. Took a tour & walked across an old lava field with a guide to watch the lava flows. They told us not to take a piece of the rock/lava. Well, I thought it was hooy so I took a very small piece. I took it home with me. Forgot I had it. Lost my job in early 2015. My husband lost his 6 weeks earlier. I ended up throwing it away since I couldn't go all the way back to H. Never fool with mother nature.