Fulgurites are natural tubes or crusts of glass formed by the fusion of silica (quartz) sand or rock from a lightning strike. Their shape mimics the path of the lightning bolt as it disperses into the ground. All lightning strikes that hit the ground are capable of forming fulgurites.
You will be picked one at random.
Please Note that these is fragile!
As with all Stones, you may find natural cracks, pockets or tiny flaws, this is normal and to be expected. Even Mother Earth is not perfect!