Indochinite Tektites collected in China are black in color with pitted surfaces and rounded to disk like shapes.
The work (Tektites) comes from the Greek (tektos) meaning (Molten) Tektites are natural glass rocks measuring up to a few centimeters in size. Tektites are usually black or olive green in color with shapes that vary some being rounded, dumbell shaped, disk and other irregular designs.
Most scientists believe they were formed by the impact of large meteorites on the surface of the earth. Tektites have a very unusual amount of water being among the driest rocks with a water content of just 0.005%. Scientists belive this water content is strange in that most craters where tektites may have formed were underwater before the time of any impact. Another strange thing concerning tektites is that 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.
There a several theories surrounding tektites (The terrestrial impact therory) and (The early non-terrestrial impact theories) you can learn more about these here.
These strange and wonderful Tektites measure approximately 1" Inch or more in size have rounded to disk like shapes and feature impressioned, pitted surfaces with deep black coloring.
