Genuine Tektite 20 Grams
Guangdong - China
Fragments Size: 43mm x 25mm x 16mm
Supplied in display box 60mm x 40mm
Tektites are natural glass objects, up to a few centimeters in size, which according to most scientists — have been formed by the impact of large meteorites on Earth's surface. Tektites are among the "driest" rocks, with an average water content of 0.005%. This is very unusual, as most if not all of the craters where tektites may have formed were underwater before impact. Also, partially melted zircons have been discovered inside a handful of tektites. This, along with the water content, suggests that the tektites were formed under phenomenal temperature and pressure not normally found on the surface of the Earth.
The terrestrial-impact theory states that an impact melts material from the Earth's surface and catapults it up to several hundred kilometers away from the impact site. The molten material cools and solidifies to glass. According to this theory, although a meteorite impact causes the formation, the precursor material of tektites is primarily of terrestrial origin, as determined from isotopic measurements. The color of tektites is black or olive-green, and their shape varies from rounded to irregular
Good sized specimen.
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