Grow one in your freezer! Ice spikes happen when surface water freezes, except for a
small hole or crack, where water pushes up thru and freezes into a spike. Spikes 18 feet
tall have been observed in Lake Erie.
Use *distilled water* in your ice cube tray, or try boiling the water and filtering it. This one
grew with plain tap water. Tried to take better pics, this is as good as I could get.
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