Difference between revisions of "Fulgurite"
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== Description == | == Description == | ||
| − | A tube of natural glass formed when lightning strikes a dry sandy region, such as a desert or a beach. A fulgurite is composed of almost pure [[silica]]. The | + | A tube of natural glass formed when lightning strikes a dry sandy region, such as a desert or a beach. A fulgurite is composed of almost pure [[silica]]. The most common is a sand fulgurite, that forms fractal cylindrical branches, similar to a tree. The central cavity is usually lined with glass, and the exterior shows adhering sand grains. Other types or fulgurites are usually vesicular, and may lack an open central tube; their exteriors can be porous or smooth. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
lechatelierite | lechatelierite | ||
| + | |||
| + | ==Resources and Citations== | ||
| + | |||
| + | * Encyclopedia Britannica: [https://www.britannica.com/science/fulgurite fulgurite] | ||
| + | |||
| + | * Wikipedia at https://en.wikipedia.org/wiki/Fulgurite (Accessed August 2020) | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 10:58, 23 August 2020
Description
A tube of natural glass formed when lightning strikes a dry sandy region, such as a desert or a beach. A fulgurite is composed of almost pure Silica. The most common is a sand fulgurite, that forms fractal cylindrical branches, similar to a tree. The central cavity is usually lined with glass, and the exterior shows adhering sand grains. Other types or fulgurites are usually vesicular, and may lack an open central tube; their exteriors can be porous or smooth.
Synonyms and Related Terms
lechatelierite
Resources and Citations
- Encyclopedia Britannica: fulgurite
- Wikipedia at https://en.wikipedia.org/wiki/Fulgurite (Accessed August 2020)