Super Big Power Crystal

The Super Big Power Crystal appears in Crash Boom Bang where the Viscount is searching for it. It can grant one person a wish before disappearing. Crash Bandicoot wished for a vast amount of Wumpa Fruit and the wish was granted making the crystal disappear. The crystal was never mentioned or seen again in any Crash games since.

Trivia

 * It's possible that this is in fact the Master Crystal but this was never confirmed.