Original and authentic Russian Space Shuttle Buran black heat shield tile. Size may vary .

Here some information: The black heat shield tile made for use on Buran space Shuttle as part of the reusable thermal protection system (TPS), protecting the spacecraft and the cosmonauts inside from the 1500C degree temperatures generated during its re-entry from space, back into the Earth's atmosphere. The tile made from special lightweight quartz material with multiple layers of a proprietary heat-resistant composite coating.