March 4, 2012


Fulgurites (from the Latin fulgur meaning thunderbolt) are natural hollow glass tubes formed in quartsoze sand, silica, or soil by lightning strikes. They are formed when lightning with a temperature of at least 1,800 °C (3,270 °F) instantaneously melts silica on a conductive surface and fuses grains together; the fulgurite tube is the cooled product.
In 1996 the International Center for Lightning Research and Testing excavated this fulgurite to a depth of nearly 6 meters, then removed it for museum display.
(via wikipedia and Lightning Research Laboratory (UF))

Fulgurites (from the Latin fulgur meaning thunderbolt) are natural hollow glass tubes formed in quartsoze sand, silica, or soil by lightning strikes. They are formed when lightning with a temperature of at least 1,800 °C (3,270 °F) instantaneously melts silica on a conductive surface and fuses grains together; the fulgurite tube is the cooled product.

In 1996 the International Center for Lightning Research and Testing excavated this fulgurite to a depth of nearly 6 meters, then removed it for museum display.

(via wikipedia and Lightning Research Laboratory (UF))

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    We have some rather striking ones on display here at the UMMNH.
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