Fulgurite
Description
A tube of natural glass formed when lightning strikes a dry sandy region, such as a desert. A fulgurite is composed of almost pure silica. The glassy rock has a tubular shape.
Synonyms and Related Terms
lechatelierite
A tube of natural glass formed when lightning strikes a dry sandy region, such as a desert. A fulgurite is composed of almost pure silica. The glassy rock has a tubular shape.
lechatelierite