Blitmanite 834, a derivative of blitmanite, was a magnesium-based explosive. This explosive was used in remote spectroscopy vaporization devices for scientific and industrial applications. It was not recommended for use underwater. It was provided in several different sizes ranging from 0.02 gram to 2.3 kilograms, depending on the application. In 2367, this explosive was stored on aboard the Federation starship USS Enterprise-D.
In that year, Blitmanite 834 was on a list of explosives that Lieutenant Commander Data and Counselor Deanna Troi searched through in an attempt to find one that could produce enough energy to release the USS Enterprise-D and an alien ship from the Tyken's Rift. (TNG: "Night Terrors")