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Petrified Lightning

November 25th 2009 01:51
fulgurite


Fulgurites (from the Latin fulgur meaning thunderbolt) are natural hollow glass tubes formed in sand or soil by lightning strikes.
They are formed when lightning with a high temperature of at least instantaneously melts and fuses grains together creatin a hollow tube.
Although lightening strikes last less than a second. The Fulgurites can be left behind and picked up as a reminder. Sometimes it may even fossilise to be found centuries later.


fulgurites found in loose sand
The easiest fulgurites to fond and recover are those that have formed recently in loosely structured sand. The shifting sand makes the fulgurites both easy to see and relatively uncomplicated to remove.


Fossilized Lightning
Fossilized Lightning





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Posted By: Ian - Category: weather
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