[Bernard Marx]

Glasses resulting from meteor impacts are called tektites and the Libyan desert glass falls into that category. There are many famous tektite occurrences all around the world. Probably the best known is the kind called Moldavite from its discovery in Moldavia in the former Czechoslovakia. Other famous tektite fields are found in Australia-southeast Asia, the U.S. and Ivory Coast. In Sanskrit tektites were called "agni mani" which translates as "fire pearl."

For the description of a trek to the Libyan location follow "Meteorite Man" Bob Haag here: Libya Those wishing to learn more can find lots of good info at Tektites and Tektite Lore

[SunkenCiv]

Thanks.

[djf]

Yup. Tektites. IIRC, there was a SciAm article about it years back.

The study of glass is actually a very interesting part of geology. Turns out every volcano produces as part of the ash, it's own very, very specific kind of glass particles.

I forget the fellows name, but he is an expert in just about every ash-producing eruption for the last 5 centuries or so... and it was his work, in part, that identified Toba as the event it was.