Yes you can cry underwater but you would most likely drown because when you cry, you breathe heavily and trying to breath underwater? lol nah
It's called Data
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It is extremely useful for geologists, because most specimens of a given mineral are very close to the same hardness. ... So, we can conclude that not all the rocks are hard, and the hardness of rocks depends on how the atoms of the rock's minerals are bound to each other and how they are arranged.