|A block in Minetest Game|
It is a light-emitting transparent non-solid block which disappears (i.e. turns into air) after only 0.4 seconds. This block appears at the position of TNT right after it has exploded. It disappears (i.e. turns into air) after 0.4 seconds.
Like air, this block can not be pointed at, or mined.
Note: This block itself is completely harmless and does not do any damage to living beings or the environment. It's the TNT itself which deals the actual damage.