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3 Years of Service
Glass just denotes an amorphous crystal structure. Its really wild when you get into metallic glasses. My rock is pretty neat. Its a big agate about the size of my palm and vaguely hemispherical. The layer lines are really prominent in different areas on it so it looks a little bit like a brain. Really handy as a fidget when I'm trying to to focus to be flipping around a "fossilized brain"Wait, Glass can be counted as Rocks?
Not sure what mine's is called, I picked it up since its smooth and heavy, kinda fun to bring around.