Obelisk Tip

The Obelisk Tip is one of the five fragments of the great Blackrock Obelisk of Pagan. It is the object of power of the Titan of Ether: the Avatar. It appears in Ultima VIII

Description
When the Obelisk was shattered by the Guardian, the Obelisk Tip cleanly sliced off and hurled away by the powers unleashed. It was found by the Zealans and - realizing the great powers it held - stored in the tomb of Khumash-Gor, where it would be safely guarded by his restless spirit. It stayed with him over the centuries, until the Avatar found it there in after defeating Khumash-Gor's spirit in battle. The Avatar used the tip at the end to activate the power necessary to leave Pagan, when it melted into the newly created Obelisk.

Trivia

 * A small error with the Obelisk Tip is, that it's formed like a pyramid, but the re-created Obelisk is hexagonal in its shape.