Silyconite crystals

Silyconite crystals are very important in developing societies as these societies use them as a power supply. These crystals are very rare throughout the galaxy but are found in extremely large concentrations on desert planets. They are very easy to mine, refine and apply to daily jobs and functions. They absorb large amounts of excess electricity and then release it slowly with its own output. Without these many developing races wouldn't have accomplished space travel. These crystals run out of their own power fairly quickly so replacment crystals should always be stockpiled.
 * tradeables