This is my full story of the Shard, which was deducted, or inferred, from Dark Crystal productions, such as Series, Movies, Comics etc..
The crystal is a big crystal in the heart of thra. After 1000 years of thra’s birth some mysterious light beings callled UrSkeks arrive after the great conjunction. Another thousand years later, one of the urskeks is corrupted with anger and the crystal rejects the whole lot. The crystal spits the beings into 2. Mystics (Uru) and Skeksis. The skeksis then break a shard from the crystal. Aughra and Rayunip look for the shard for years but their efforts are only met with failure. Years later, Thra gives UrGoh and SkekGra a vision, and they are branded heretic. Before being kicked out of the castle, SkekGra finds the shard and later forms a sword (the dual glaive) with his counterpart, UrGoh, with the power to end skeksis rule. After the battle of Stone-in-the-Wood, brea finds the shard among broken pieces of the dual glaive. She gives the shard to Aughra, who loses it among her many other Crystals. Jen then visits aughra and finds the shard. He then puts it Back in the crystal and the Skeksis and Uru’s become one again. Of course there is the think with the comics, the power of the dark crystal, and how the fireling broke the shard again, but I will go through it sometime in the future.