Tektites, from the Greek "tÄ“ktos" translating to "molten" are gravel-size bodies that are composed of black, green, brown or grey, natural glass that are formed from terrestrial debris ejected during extraterrestrial impacts (Meteorites). This particular piece is semi-translucent on both tips when held up to light.
The majority of known tektites occur only within four geographically extensive strewn fields. These strewn fields are the Australasian, Central European, Ivory Coast, and North American strewn fields. The tektites within each strewn field are related to each other with respect to their petrological, physical, and chemical properties as well as their age. In addition, three of the four strewn fields have been clearly linked with impact craters on the basis of petrological and chemical properties as well as their age.