Dictionary of Space Concepts

Short definition: 

Tektites are small pieces of natural glass that are typically black, green, brown, or grey in color. They are created when meteorites impact the Earth and cause terrestrial debris to be ejected and melted into a glass-like material.

Detailed Definition:

A tektite is a type of glass that is formed from the impact of a meteorite on the Earth's surface. The extreme heat and pressure of the impact melts and vaporizes the rocks at the impact site, which then cools and solidifies into a glass-like material. Tektites are typically black or green in color and have a smooth, rounded shape. They can vary in size from a few millimeters to several centimeters in diameter. Tektites are found in the areas around meteorite impact craters, and are used by scientists to study the effects of meteorite impacts on the Earth's surface.

Etymology:

tēktós - molten

Sample Sentence(s):

"Sir Thomas Mitchell found a tektite and gave it to Charles Darwin."

"Some human built objects, such as black buttons, can be mistaken for tektites."

Translations:

French:

Tectite

German:

Tektit

Polish:

Tektyt

Swedish:

Tektit

Links to videos/articles:

https://australian.museum/learn/minerals/shaping-earth/tektites/ 

https://www.britannica.com/science/tektite