But if you've eaten alot of salty foods and not much water that can happen too. There's the fu​​n fact of the day! | Fu​​n fact: did you know some people's tears can turn into "salt diamonds" or salt crystals? This is because they have a genetic trait that makes their tears so salty, it dries up all the water once the tear falls out of the tear duct thus forming crystals. | image tagged in gifs | made w/ Imgflip video-to-gif maker