Transinium

Overview
Transinium is a mineral that is found naturally in only two locations: 1. The Aquilan Asteroid Belt, and 2. on Dervan V. It is known to amplify some non-nuclear reactions, but is very unstable. Transinium decomposes very fast and very completely, when given enough power to do so. It is also very brittle. It can be identified as it appears as a black rock with a dotted scattering of iridescent crystals. 

History
In 2364 the crew of the USS Enterprise NCC-1701-D investigated a terrorist attack possibly related to the mineral. A sample received was a Ferengi trader has aqua-colored crystals.