tektite

noun Geology.

1. any of several kinds of small glassy bodies, in various forms, occurring in Australia and elsewhere, now believed to have been produced by the impact of meteorites on the earth’s surface.

noun

1. a small dark glassy object found in several areas around the world, thought to be a product of meteorite impactSee also moldavite

n.small roundish glass bodies, probably of meteoric origin, 1909, from German tektit (1900), from Greek tektos “molten,” from tekein “to melt.”

1. Any of numerous dark-brown to green glassy objects, usually small (about the size of a walnut) and round with pitted surfaces. Tektites consist primarily (65% to 90%) of silica and have a very low water content. They are found in groups in several widely separated parts of the world and bear no relation to surrounding geologic formations. Some have shapes that show the kind of melting and deformation typical of objects that fall through the Earth’s atmosphere. Tektites are believed to be of extraterrestrial origin or to have formed during high-velocity impacts on terrestrial rocks.